Anatomy & Physiology An Integrative Approach 3rd Edition By Michael McKinley -Test Bank
To Purchase this Complete Test Bank with Answers Click the link Below
If face any problem or
Further information contact us At tbzuiqe@gmail.com
Sample Test
Anatomy & Physiology, 3e (McKinley)
Chapter 3 Energy, Chemical Reactions, and Cellular
Respiration
1) Stored energy is described as potential energy.
Answer: TRUE
Section: 03.01
Topic: Cellular respiration
Learning Objective: 03.01.01 Describe the two classes of
energy.
Bloom’s: 1. Remember
2) The energy of motion is known as ________ energy.
Answer: kinetic
Section: 03.01
Topic: Cellular respiration
Learning Objective: 03.01.01 Describe the two classes of
energy.
Bloom’s: 1. Remember
3) The sodium level inside and outside of a resting
cell is an example of the
1. A)
kinetic energy of sodium rushing out of a cell down its concentration gradient.
2. B)
kinetic energy of the large difference in sodium concentration on the inside
versus the outside of the cell.
3. C)
potential energy of a concentration gradient, because sodium is more abundant
outside the cell.
4. D)
potential energy of an electron transport chain, because sodium has an extra
electron to donate.
5. E)
conversion of potential energy to kinetic energy, because sodium can never move
across the cell membrane and must move across its surface.
Answer: C
Section: 03.01
Topic: Cellular respiration
Learning Objective: 03.01.02 Describe chemical energy (one
form of potential energy) and the various forms of kinetic energy.
Bloom’s: 3. Apply
HAPS Topic: Module C08 Mechanisms for movement of
materials across cell membranes.
4) The energy stored in a molecule’s chemical bonds is a form of
kinetic energy.
Answer: FALSE
Section: 03.01
Topic: Cellular respiration
Learning Objective: 03.01.02 Describe chemical energy (one
form of potential energy) and the various forms of kinetic energy.
Bloom’s: 2. Understand
5) As a runner sprints down a track, her movement is an example
of
1. A)
potential energy.
2. B)
mechanical energy.
3. C)
heat.
4. D)
radiant energy.
5. E)
chemical energy.
Answer: B
Section: 03.01
Topic: Cellular respiration
Learning Objective: 03.01.02 Describe chemical energy (one
form of potential energy) and the various forms of kinetic energy.
Bloom’s: 3. Apply
6) ________ is a monomer that is stored as the polymer
glycogen within the liver and muscle.
Answer: Glucose
Section: 03.01
Topic: Cellular respiration
Learning Objective: 03.01.03 List the three important
molecules within the body that function primarily in chemical energy.
Bloom’s: 1. Remember
HAPS Topic: Module C04 Organic compounds.
7) Compare and contrast chemical energy and radiant energy. Into
which broad category of energy (kinetic or potential) does each fit? What are
two examples of each type of energy that relate to human physiology?
Answer: Chemical energy is potential energy and radiant
energy is kinetic energy. Two examples of chemical energy are triglycerides and
complex carbohydrates such as glycogen. Two examples of radiant energy are
UV light (a DNA mutagen) and visible light (sensed by the visual system).
Section: 03.01
Topic: Cellular respiration
Learning Objective: 03.01.02 Describe chemical energy (one
form of potential energy) and the various forms of kinetic energy.
Bloom’s: 4. Analyze
8) Three molecules that are important energy storage
locations in the body are
1. A)
DNA, tRNA, and rRNA.
2. B)
glucose, glucagon, and glycogen.
3. C)
ATP, glycogen, and triglyceride.
4. D)
ADP, DNA, and mRNA.
5. E)
glucagon, insulin, and protein.
Answer: C
Section: 03.01
Topic: Cellular respiration
Learning Objective: 03.01.03 List the three important
molecules within the body that function primarily in chemical energy.
Bloom’s: 1. Remember
HAPS Topic: Module C04 Organic compounds.
9) The propagation of an impulse along the axon of a neuron is
considered electrical energy, a form of kinetic energy.
Answer: TRUE
Section: 03.01
Topic: Cellular respiration
Learning Objective: 03.01.02 Describe chemical energy (one
form of potential energy) and the various forms of kinetic energy.
Bloom’s: 3. Apply
10) The form of kinetic energy that refers to the movement of
electromagnetic waves is ________ energy.
Answer: radiant
Section: 03.01
Topic: Cellular respiration
Learning Objective: 03.01.02 Describe chemical energy (one
form of potential energy) and the various forms of kinetic energy.
Bloom’s: 2. Understand
11) Which is a form of energy that is generally unavailable to
do any work?
1. A)
Heat
2. B)
Kinetic energy
3. C)
Radiant energy
4. D)
Sound energy
5. E)
Mechanical energy
Answer: A
Section: 03.01
Topic: Cellular respiration
Learning Objective: 03.01.02 Describe chemical energy (one
form of potential energy) and the various forms of kinetic energy.
Bloom’s: 2. Understand
12) The first law of thermodynamics states that once energy is
consumed, it can no longer be converted to any other form of energy.
Answer: FALSE
Section: 03.01
Topic: Cellular respiration
Learning Objective: 03.01.04 State the first law and
second law of thermodynamics.
Bloom’s: 2. Understand
13) According to the second law of thermodynamics, when energy
is transformed from one kind to another,
1. A)
some of it is converted to heat.
2. B)
some energy is destroyed.
3. C)
new energy is created.
4. D)
homeostasis is maintained.
5. E)
chemical bonds must be broken.
Answer: A
Section: 03.01
Topic: Cellular respiration
Learning Objective: 03.01.04 State the first law and
second law of thermodynamics.
Bloom’s: 1. Remember
14) When we shiver on a cold day, the heat produced by muscle
tissue is a demonstration of
1. A)
radiant potential energy.
2. B)
the first law of thermodynamics.
3. C)
the second law of thermodynamics.
4. D)
the creation of energy.
Answer: C
Section: 03.01
Topic: Cellular respiration
Learning Objective: 03.01.05 Explain why energy conversion
is always less than 100%.
Bloom’s: 3. Apply
15) When a car burns gasoline, the majority of the gasoline’s
chemical energy is transformed to sound and heat.
Answer: TRUE
Section: 03.01
Topic: Cellular respiration
Learning Objective: 03.01.05 Explain why energy conversion
is always less than 100%.
Bloom’s: 1. Remember
16) When our inner ears convert sound energy into neural
impulses or our retinas convert light into neural impulses,
1. A) no
heat is generated, and so it is an exception to the first law of
thermodynamics.
2. B) it
is an exception to both laws of thermodynamics, because no usable energy is
lost.
3. C) it
is consistent with the second law of thermodynamics, but an exception to
the first.
4. D)
the conversion is consistent with both laws of thermodynamics.
Answer: D
Section: 03.01
Topic: Cellular respiration
Learning Objective: 03.01.05 Explain why energy conversion
is always less than 100%.
Bloom’s: 3. Apply
17) Typically, synthesis reactions are endergonic.
Answer: TRUE
Section: 03.02
Topic: Cellular respiration
Learning Objective: 03.02.08 Describe the three
classifications of chemical reactions.
Bloom’s: 2. Understand
HAPS Topic: Module O02 Introduction to metabolism.
18) Chemical reactions that release energy are called ________
reactions.
Answer: exergonic
Section: 03.02
Topic: Cellular respiration
Learning Objective: 03.02.08 Describe the three
classifications of chemical reactions.
Bloom’s: 1. Remember
HAPS Topic: Module O02 Introduction to metabolism.
19) The reaction in which water and carbon dioxide combine to
form carbonic acid is
1. A)
irreversible, as carbonic acid rapidly causes a drop in pH.
2. B)
reversible, and can proceed in either direction depending on the concentrations
of the molecules.
3. C)
exergonic, and is an important energy source within the body.
4. D) an
exchange reaction in which protons are transferred between atoms.
5. E) a
catabolic reaction in which the formation of a larger molecule can lead to an
increase in cell size.
Answer: B
Section: 03.02
Topic: Cellular respiration
Learning Objective: 03.02.08 Describe the three
classifications of chemical reactions.
Bloom’s: 3. Apply
HAPS Topic: Module C03 Inorganic compounds and solutions.
20) The building of complex molecules from simpler ones is
described as
1. A)
anabolism.
2. B)
catabolism.
3. C)
exergonic.
4. D)
irreversible.
5. E)
reversible.
Answer: A
Section: 03.03
Topic: Cellular respiration
Learning Objective: 03.02.09 Distinguish between
catabolism and anabolism.
Bloom’s: 1. Remember
HAPS Topic: Module O02 Introduction to metabolism.
21) When the body’s digestive system breaks down starch, a
complex carbohydrate, into simpler carbohydrates, the reaction is
1. A)
anabolic and endergonic.
2. B)
anabolic and exergonic.
3. C)
catabolic and exergonic.
4. D)
catabolic and endergonic.
Answer: C
Section: 03.02
Topic: Cellular respiration
Learning Objective: 03.02.09 Distinguish between
catabolism and anabolism.
Bloom’s: 3. Apply
HAPS Topic: Module O02 Introduction to metabolism.
22) Which one of the following choices includes three
descriptions that are consistent with each other (that is, that describe the
same type of chemical reaction)?
1. A)
Anabolic, dehydration, endergonic
2. B)
Exchange, hydrolysis, endergonic
3. C) Catabolic,
dehydration, irreversible
4. D)
Metabolic, synthesis, exergonic
5. E)
Anabolic, catabolic, dehydration
Answer: A
Section: 03.02
Topic: Cellular respiration
Learning Objective: 03.02.08 Describe the three
classifications of chemical reactions.
Bloom’s: 4. Analyze
HAPS Topic: Module O02 Introduction to metabolism.
23) The exchange of a phosphate group between creatine phosphate
and adenosine diphosphate is categorized as a catabolic (rather than anabolic)
reaction.
Answer: FALSE
Section: 03.02
Topic: Cellular respiration
Learning Objective: 03.02.09 Distinguish between
catabolism and anabolism.
Bloom’s: 3. Apply
HAPS Topic: Module O02 Introduction to metabolism.
24) The term “metabolism” refers to
1. A)
reactions involving the breakdown of complex molecules into simpler ones.
2. B)
reactions involving the breakdown of complex molecules or the exchange of atoms
between similarly sized reactants.
3. C)
all the chemical reactions in the body.
4. D)
reactions involving the synthesis of complex molecules from simpler ones.
5. E)
digestive system reactions that are either catabolic or exchange reactions.
Answer: C
Section: 03.02
Topic: Cellular respiration
Learning Objective: 03.02.06 Explain what occurs in a
chemical reaction.
Bloom’s: 2. Understand
HAPS Topic: Module O02 Introduction to metabolism.
25) When NAD+ becomes NADH, it is being
1. A)
reduced and gaining chemical energy.
2. B)
reduced and releasing chemical energy.
3. C)
oxidized and gaining chemical energy.
4. D)
oxidized and releasing chemical energy.
Answer: A
Section: 03.03
Topic: Cellular respiration
Learning Objective: 03.02.10 Discuss the exchange that
takes place in an oxidation-reduction reaction.
Bloom’s: 3. Apply
HAPS Topic: Module O02 Introduction to metabolism.
26) In a chemical reaction where an electron is exchanged from
one reactant to another, the structure that loses an electron is
1. A)
analyzed.
2. B)
catalyzed.
3. C)
oxidized.
4. D)
reduced.
Answer: C
Section: 03.02
Topic: Cellular respiration
Learning Objective: 03.02.10 Discuss the exchange that
takes place in an oxidation-reduction reaction.
Bloom’s: 2. Understand
HAPS Topic: Module O02 Introduction to metabolism.
27) In a redox reaction, when one reactant is oxidized, the
other
1. A) is
reduced.
2. B) is
also oxidized.
3. C) is
hydrolyzed into a smaller molecule.
4. D)
releases chemical energy in the form of ATP.
5. E)
becomes a larger, more complex molecule.
Answer: A
Section: 03.02
Topic: Cellular respiration
Learning Objective: 03.02.10 Discuss the exchange that
takes place in an oxidation-reduction reaction.
Bloom’s: 2. Understand
HAPS Topic: Module O02 Introduction to metabolism.
28) Generally, a cell stores enough ATP to meet the energy
requirements of a few
1. A)
seconds.
2. B)
minutes.
3. C) hours.
4. D)
days.
Answer: A
Section: 03.02
Topic: Cellular respiration
Learning Objective: 03.02.11 Explain ATP cycling.
Bloom’s: 1. Remember
HAPS Topic: Module C05 Energy transfer using ATP.
29) ATP formation
1. A) is
endergonic and liberates energy for cellular processes that require energy.
2. B) is
endergonic and requires the presence of fuel molecules such as glucose.
3. C) is
exergonic and liberates energy for cellular processes that require energy.
4. D) is
exergonic and requires the presence of fuel molecules such as glucose.
Answer: B
Section: 03.02
Topic: Energy transfer using ATP
Learning Objective: 03.02.11 Explain ATP cycling.
Bloom’s: 2. Understand
HAPS Topic: Module C11 Cellular respiration.
30) In a lab setting, heating a vessel full of reactants will
generally
1. A)
increase the kinetic energy of the molecules and increase the reaction rate.
2. B)
raise the activation energy and catalyze the reaction.
3. C)
lower the activation energy and the kinetic energy of the reactants.
4. D)
convert products to reactants by increasing the energy requirements.
5. E)
lower the reaction rate due to the change in structure of the reactants.
Answer: A
Section: 03.02
Topic: Cellular respiration
Learning Objective: 03.02.12 Define chemical reaction
rate.
Bloom’s: 2. Understand
HAPS Topic: Module C04 Organic compounds.
31) In order for a reaction to occur, energy is needed to
break the bonds that already exist in the reactant molecules; that energy is
called the ________ energy.
Answer: activation
Section: 03.02
Topic: Cellular respiration
Learning Objective: 03.02.13 Explain activation energy.
Bloom’s: 1. Remember
HAPS Topic: Module C04 Organic compounds.
32) Explain the relationship between activation energy and
reaction rate. For example, how would an increase in activation
energy affect reaction rate? How do biological systems differ from lab
settings when considering these chemical variables?
Answer: Higher activation energy requirements would
be associated with slower reaction rates. Biological systems generally rely on
protein enzymes to serve as catalysts that lower activation energy, whereas lab
settings can employ high temperatures to increase the kinetic energy of the
reactants to overcome the required energy input.
Section: 03.02
Topic: Cellular respiration
Learning Objective: 03.02.12 Define chemical reaction
rate.; 03.02.13 Explain activation energy.
Bloom’s: 4. Analyze
HAPS Topic: Module C04 Organic compounds.
33) The term “activation energy” refers to the amount of energy
1. A)
released by an exergonic reaction.
2. B)
released by an endergonic reaction.
3. C)
released by a catabolic reaction.
4. D)
required to initiate any chemical reaction.
5. E)
required to initiate only catabolic reactions.
Answer: D
Section: 03.02
Topic: Cellular respiration
Learning Objective: 03.02.13 Explain activation energy.
Bloom’s: 2. Understand
HAPS Topic: Module C04 Organic compounds.
34) A reaction with a very high activation energy should have a
very high reaction rate.
Answer: FALSE
Section: 03.02
Topic: Cellular respiration
Learning Objective: 03.02.13 Explain activation energy.
Bloom’s: 2. Understand
HAPS Topic: Module C04 Organic compounds.
35) The presence of an enzyme within a chemical system
1. A)
increases activation energy.
2. B)
decreases activation energy.
3. C)
increases potential energy.
4. D)
does not affect either activation energy or potential energy.
Answer: B
Section: 03.03
Topic: Cellular respiration
Learning Objective: 03.03.14 Describe the general function
of enzymes.
Bloom’s: 2. Understand
HAPS Topic: Module C04 Organic compounds.
36) Enzymes are biological catalysts that are crucial for normal
human metabolism.
Answer: TRUE
Section: 03.03
Topic: Cellular respiration
Learning Objective: 03.03.14 Describe the general function
of enzymes.
Bloom’s: 2. Understand
HAPS Topic: Module C04 Organic compounds.
37) Exergonic reactions do not require activation energy.
Answer: FALSE
Section: 03.03
Topic: Cellular respiration
Learning Objective: 03.03.14 Describe the general function
of enzymes.
Bloom’s: 2. Understand
HAPS Topic: Module C04 Organic compounds.
38) In the absence of the enzyme carbonic anhydrase, the
combination of water and carbon dioxide to form carbonic acid does not
occur.
Answer: FALSE
Section: 03.03
Topic: Cellular respiration
Learning Objective: 03.03.14 Describe the general function
of enzymes.
Bloom’s: 3. Apply
HAPS Topic: Module C04 Organic compounds.
39) Structurally, enzymes are generally
1. A)
globular proteins.
2. B)
fibrous proteins.
3. C)
spherical carbohydrates.
4. D)
elongated carbohydrates.
5. E)
four-ring steroids.
Answer: A
Section: 03.03
Topic: Cellular respiration
Learning Objective: 03.03.15 Describe the key structural
components of enzymes.
Bloom’s: 1. Remember
HAPS Topic: Module C04 Organic compounds.
40) The region of an enzyme into which the substrate fits is a
1. A)
one-size-fits-all active site.
2. B)
highly specific active site.
3. C)
highly specific antibody.
4. D)
one-size-fits-all antibody.
Answer: B
Section: 03.03
Topic: Cellular respiration
Learning Objective: 03.03.15 Describe the key structural
components of enzymes.
Bloom’s: 1. Remember
HAPS Topic: Module C04 Organic compounds.
41) The enzyme-substrate complex is
1. A)
another name for the active site.
2. B)
the reactants whose chemical reaction the enzyme catalyzes.
3. C)
the chemical structure formed when the substrate binds to the active site.
4. D) a
pocket on the substrate that the enzyme recognizes.
Answer: C
Section: 03.03
Topic: Cellular respiration
Learning Objective: 03.03.15 Describe the key structural
components of enzymes.
Bloom’s: 4. Analyze
HAPS Topic: Module C04 Organic compounds.
42) Pancreatic amylase serves its function when it is located in
the
1. A)
mouth.
2. B)
blood.
3. C)
liver.
4. D)
stomach.
5. E)
small intestine.
Answer: E
Section: 03.03
Topic: Cellular respiration
Learning Objective: 03.03.16 Identify places in the body
where enzymes may be found.
Bloom’s: 3. Apply
HAPS Topic: Module C04 Organic compounds.
43) Lactose intolerance is caused by the lack of the enzyme
lactase, which is normally found in the
1. A)
lumen of the stomach.
2. B)
inside of cells of the liver and gall bladder.
3. C)
membranes of cells in the small intestine.
4. D)
inside of cells in the large intestine.
5. E)
endothelium of capillaries in the large intestine.
Answer: C
Section: 03.03
Topic: Cellular respiration
Learning Objective: 03.03.16 Identify places in the body where
enzymes may be found.
Bloom’s: 3. Apply
HAPS Topic: Module C04 Organic compounds.
44) The enzyme DNA polymerase is synthesized
1. A) at
a ribosome, and it remains within the cell.
2. B) at
the rough endoplasmic reticulum, and it is secreted from the cell.
3. C) at
the Golgi apparatus, and it is embedded in the cell membrane.
4. D) in
the nucleus, and it is converted to RNA for export outside the cell.
Answer: A
Section: 03.03
Topic: Cellular respiration
Learning Objective: 03.03.16 Identify places in the body
where enzymes may be found.
Bloom’s: 3. Apply
HAPS Topic: Module C04 Organic compounds.
45) Which answer lists the steps of enzyme action in correct
order?
1. A)
Formation of enzyme-substrate complex, induced fit, formation or breakage of
chemical bonds, release of product
2. B)
Induced fit, formation of enzyme-substrate complex, formation or breakage of
chemical bonds, release of product
3. C)
Formation or breakage of chemical bonds, induced fit, formation of
enzyme-substrate complex, release of substrate
4. D)
Induced fit, formation or breakage of chemical bonds, formation of
enzyme-substrate complex, release of product
Answer: A
Section: 03.03
Topic: Cellular respiration
Learning Objective: 03.03.17 Explain the steps by which an
enzyme catalyzes a reaction.
Bloom’s: 1. Remember
HAPS Topic: Module C04 Organic compounds.
46) When an enzyme’s conformational change results in the
enzyme hugging the substrate in its active site, the action
is referred to as the ________ model of enzyme function.
Answer:
induced-fit
induced fit
Section: 03.03
Topic: Cellular respiration
Learning Objective: 03.03.17 Explain the steps by which an
enzyme catalyzes a reaction.
Bloom’s: 1. Remember
HAPS Topic: Module C04 Organic compounds.
47) When an enzyme catalyzing a catabolic reaction changes
conformation to an induced fit with the substrate,
1. A) it
strengthens the chemical bonds in the enzyme so that it remains perpetually
active.
2. B) it
stresses chemical bonds in the substrate, making it easier to break them.
3. C) it
strengthens chemical bonds in the substrate so that cofactors can act on it.
4. D) it
stresses chemical bonds in the enzyme so that the enzyme breaks into two
catalytic subunits.
Answer: B
Section: 03.03
Topic: Cellular respiration
Learning Objective: 03.03.17 Explain the steps by which an
enzyme catalyzes a reaction.
Bloom’s: 2. Understand
HAPS Topic: Module C04 Organic compounds.
48) In the final step of enzymatic catalysis,
1. A)
the substrate is released and the enzyme is inactivated.
2. B)
the product is completed and the enzyme is inactivated.
3. C)
the products are released and the enzyme is free to bind other substrates.
4. D)
the enzyme and substrate form chemical bonds with each other resulting in a new
product.
5. E)
equilibrium is obtained so that the enzyme does not catalyze further reactions.
Answer: C
Section: 03.03
Topic: Cellular respiration
Learning Objective: 03.03.17 Explain the steps by which an
enzyme catalyzes a reaction.
Bloom’s: 1. Remember
HAPS Topic: Module C04 Organic compounds.
49) Cofactors are generally proteins.
Answer: FALSE
Section: 03.03
Topic: Cellular respiration
Learning Objective: 03.03.18 Describe cofactors and their
role in reactions.
Bloom’s: 1. Remember
HAPS Topic: Module O02 Introduction to metabolism.
50) Organic cofactors are referred to as ________.
Answer: coenzymes
Section: 03.03
Topic: Cellular respiration
Learning Objective: 03.03.18 Describe cofactors and their
role in reactions.
Bloom’s: 1. Remember
HAPS Topic: Module O02 Introduction to metabolism.
51) In performing its enzymatic function, carbonic anhydrase
1. A)
requires the inorganic coenzyme zinc.
2. B)
requires the organic coenzyme carbon dioxide.
3. C) is
facilitated by the inorganic coenzyme NAD+.
4. D) is
facilitated by the organic coenzyme zinc.
5. E)
requires the inorganic coenzyme NADPH.
Answer: A
Section: 03.03
Topic: Cellular respiration
Learning Objective: 03.03.18 Describe cofactors and their
role in reactions.
Bloom’s: 4. Analyze
HAPS Topic: Module O02 Introduction to metabolism.
52) Which enzyme class splits a chemical bond in the absence of
water?
1. A)
Ligase
2. B)
Oxidoreductase
3. C)
Lyase
4. D)
Hydrolase
5. E)
Dehydrogenase
Answer: C
Section: 03.03
Topic: Cellular respiration
Learning Objective: 03.03.19 Identify the six major
classes of enzymes and the general functions of enzymes in each class.
Bloom’s: 1. Remember
HAPS Topic: Module C04 Organic compounds.
53) Which enzyme class transfers electrons from one substance to
another?
1. A)
Oxidoreductase
2. B)
Transferase
3. C)
Isomerase
4. D)
Ligase
5. E)
Electin
Answer: A
Section: 03.03
Topic: Cellular respiration
Learning Objective: 03.03.19 Identify the six major
classes of enzymes and the general functions of enzymes in each class.
Bloom’s: 1. Remember
54) An enzyme that is described as a protein kinase is a(n)
1. A)
hydrolase that removes an amino acid from a protein.
2. B)
transferase that transfers a phosphate group to a protein substrate.
3. C)
ligase that adds an amino acid to a protein.
4. D)
isomerase that changes one protein into another.
5. E)
protease that transfers electrons from one protein to another.
Answer: B
Section: 03.03
Topic: Energy transfer using ATP
Learning Objective: 03.03.19 Identify the six major
classes of enzymes and the general functions of enzymes in each class.
Bloom’s: 3. Apply
55) Lactase is an enzyme that digests lactose.
Answer: TRUE
Section: 03.03
Topic: Cellular respiration
Learning Objective: 03.03.20 Describe the naming conventions
for enzymes.
Bloom’s: 1. Remember
56) Briefly describe how enzymes are named. What is generally
used for the root of the name, and what is generally used as the suffix?
Provide one example.
Answer: The root is usually the substrate (or product) and
the suffix is generally “-ase”. An example is lactase, which digests
lactose.
Section: 03.03
Topic: Cellular respiration
Learning Objective: 03.03.20 Describe the naming
conventions for enzymes.
Bloom’s: 2. Understand
57) An isomerase bonds two similar molecules together to form a
larger one.
Answer: FALSE
Section: 03.03
Topic: Cellular respiration
Learning Objective: 03.03.19 Identify the six major
classes of enzymes and the general functions of enzymes in each class.
Bloom’s: 2. Understand
58) Both pepsin and trypsin are proteins that digest proteins.
Answer: TRUE
Section: 03.03
Topic: Cellular respiration
Learning Objective: 03.03.19 Identify the six major
classes of enzymes and the general functions of enzymes in each class.
Bloom’s: 3. Apply
59) Which statement accurately describes the effects of
substrate and enzyme concentrations on reaction rate?
1. A) An
increase in either substrate or enzyme concentration will increase the reaction
rate.
2. B) An
increase in either substrate or enzyme concentration will decrease the reaction
rate.
3. C) An
increase in substrate concentration increases the reaction rate, but enzyme
concentration has no effect.
4. D) A
decrease in substrate concentration or an increase in enzyme concentration
increases the reaction rate.
5. E) An
increase in substrate concentration or a decrease in enzyme concentration will
increase the reaction rate.
Answer: A
Section: 03.03
Topic: Cellular respiration
Learning Objective: 03.03.21 Define how enzyme and
substrate concentration affect reaction rates.
Bloom’s: 2. Understand
HAPS Topic: Module C04 Organic compounds.
60) Saturation occurs when
1. A)
there is so much enzyme present that the reaction rate decreases if more
is added.
2. B)
all enzymes are busy and further increases in substrate concentration will
not increase reaction rate.
3. C)
enzymes become fatigued and can no longer catalyze changes in the substrate.
4. D)
intramolecular interactions are disrupted in the enzyme, decreasing its efficiency
and decreasing reaction rate.
5. E)
the substrate is denatured and the enzyme cannot catalyze any changes in its
structure.
Answer: B
Section: 03.03
Topic: Cellular respiration
Learning Objective: 03.03.21 Define how enzyme and
substrate concentration affect reaction rates.
Bloom’s: 2. Understand
HAPS Topic: Module C04 Organic compounds.
61) Generally, a decrease in substrate concentration leads to an
increase in reaction rate.
Answer: FALSE
Section: 03.03
Topic: Cellular respiration
Learning Objective: 03.03.21 Define how enzyme and
substrate concentration affect reaction rates.
Bloom’s: 2. Understand
HAPS Topic: Module C04 Organic compounds.
62) Enzyme saturation occurs when substrate levels are so high
that all enzyme molecules are actively engaged in the chemical reaction, and so
further increases in substrate concentration do not increase reaction rate.
Answer: TRUE
Section: 03.03
Topic: Cellular respiration
Learning Objective: 03.03.21 Define how enzyme and substrate
concentration affect reaction rates.
Bloom’s: 2. Understand
HAPS Topic: Module C04 Organic compounds.
63) At temperatures above 40°C (104°F) in the human body,
1. A)
enzymatic reactions with substrates are more quickly catalyzed.
2. B)
enzymes denature and reaction rates decrease.
3. C)
protein flexibility is optimum and reaction rates increase.
4. D)
protein shape is rigid and reaction rates are constant.
Answer: B
Section: 03.03
Topic: Cellular respiration
Learning Objective: 03.03.22 Explain the effect of
temperature on enzymes.
Bloom’s: 2. Understand
HAPS Topic: Module C04 Organic compounds.
64) A fever of 101°F causes most enzymes in the human body
1. A) to
denature.
2. B) to
become more rigid.
3. C) to
be more flexible and efficient.
4. D) to
saturate.
Answer: C
Section: 03.03
Topic: Cellular respiration
Learning Objective: 03.03.22 Explain the effect of
temperature on enzymes.
Bloom’s: 1. Remember
HAPS Topic: Module C04 Organic compounds.
65) Extremely high temperatures break intramolecular
interactions and ________ an enzyme, resulting in a loss of its
function.
Answer:denature
denatures
Section: 03.03
Topic: Cellular respiration
Learning Objective: 03.03.22 Explain the effect of
temperature on enzymes.
Bloom’s: 1. Remember
HAPS Topic: Module C04 Organic compounds.
66) Cold temperatures (below 36°C) denature proteins, which is
why biochemistry labs never freeze enzymes.
Answer: FALSE
Section: 03.03
Topic: Cellular respiration
Learning Objective: 03.03.22 Explain the effect of
temperature on enzymes.
Bloom’s: 3. Apply
HAPS Topic: Module C04 Organic compounds.
67) The optimal pH range for most human enzymes is
2. A)
1–2.
3. B)
4–6.
4. C)
6–8.
5. D)
8–10.
6. E)
13–14.
Answer: C
Section: 03.03
Topic: Cellular respiration
Learning Objective: 03.03.23 Describe how pH changes
affect enzymes.
Bloom’s: 1. Remember
HAPS Topic: Module C04 Organic compounds.
68) The optimal pH range for the stomach enzyme pepsin is
4. A)
2–4.
5. B)
6–8.
6. C)
7.3–7.4.
7. D)
10–12.
8. E)
12.0–13.5.
Answer: A
Section: 03.03
Topic: Cellular respiration
Learning Objective: 03.03.23 Describe how pH changes
affect enzymes.
Bloom’s: 1. Remember
HAPS Topic: Module C04 Organic compounds.
69) The less acidic (more basic) the environment is, the
more efficient an enzyme will be.
Answer: FALSE
Section: 03.03
Topic: Cellular respiration
Learning Objective: 03.03.23 Describe how pH changes
affect enzymes.
Bloom’s: 2. Understand
HAPS Topic: Module C04 Organic compounds.
70) A large decrease in pH results in increased
H+ binding to an enzyme, which can disrupt electrostatic interactions
within the molecule.
Answer: TRUE
Section: 03.03
Topic: Cellular respiration
Learning Objective: 03.03.23 Describe how pH changes affect
enzymes.
Bloom’s: 1. Remember
HAPS Topic: Module C04 Organic compounds.
71) A substance that binds to the active site of an enzyme and
turns it off is called a(n) ________ inhibitor.
Answer: competitive
Section: 03.03
Topic: Cellular respiration
Learning Objective: 03.03.24 Describe how competitive and
noncompetitive inhibitors control enzyme action.
Bloom’s: 1. Remember
HAPS Topic: Module C04 Organic compounds.
72) Noncompetitive inhibition of an enzyme occurs when the
inhibitor binds to the
1. A)
allosteric site, and its effectiveness is not influenced by substrate
concentration.
2. B)
allosteric site, and its effectiveness depends on substrate concentration.
3. C)
active site, and its effectiveness is not influenced by substrate concentration.
4. D)
active site, and its effectiveness depends on substrate concentration.
5. E)
substrate, and its effectiveness depends on product concentration.
Answer: A
Section: 03.03
Topic: Cellular respiration
Learning Objective: 03.03.24 Describe how competitive and
noncompetitive inhibitors control enzyme action.
Bloom’s: 2. Understand
HAPS Topic: Module C04 Organic compounds.
73) Allosteric inhibitors are also called noncompetitive
inhibitors.
Answer: TRUE
Section: 03.03
Topic: Cellular respiration
Learning Objective: 03.03.24 Describe how competitive and
noncompetitive inhibitors control enzyme action.
Bloom’s: 1. Remember
HAPS Topic: Module C04 Organic compounds.
74) When multiple enzymes are organized in a metabolic pathway,
each enzyme catalyzes one reaction and then releases the product.
Answer: TRUE
Section: 03.03
Topic: Cellular respiration
Learning Objective: 03.03.25 Distinguish between a
metabolic pathway and a multienzyme complex.
Bloom’s: 1. Remember
HAPS Topic: Module C04 Organic compounds.
75) A group of enzymes that are physically attached to one
another is referred to as a(n)
1. A)
allosteric pathway.
2. B)
metabolic pathway.
3. C)
multienzyme complex.
4. D)
phosphate complex.
Answer: C
Section: 03.03
Topic: Cellular respiration
Learning Objective: 03.03.25 Distinguish between a
metabolic pathway and a multienzyme complex.
Bloom’s: 1. Remember
HAPS Topic: Module C04 Organic compounds.
76) Which enzyme system allows for regulation at a single site and
also diminishes the chance that a needed substrate will diffuse away from a
catalyst?
1. A)
Metabolic pathway
2. B)
Multienzyme complex
Answer: B
Section: 03.03
Topic: Cellular respiration
Learning Objective: 03.03.25 Distinguish between a
metabolic pathway and a multienzyme complex.
Bloom’s: 4. Analyze
HAPS Topic: Module C04 Organic compounds.
77) To prevent depletion of a substrate, the product of a
metabolic pathway will
1. A)
turn off an enzyme early in the pathway.
2. B)
catalyze its own production.
3. C)
increase enzyme activity through positive feedback.
4. D)
occupy the active site of an enzyme early in the pathway.
Answer: A
Section: 03.03
Topic: Cellular respiration
Learning Objective: 03.03.26 Explain the role of negative
feedback in enzyme regulation.
Bloom’s: 3. Apply
HAPS Topic: Module C04 Organic compounds.
78) In the regulation of enzymes, negative feedback ensures that
a lot of product can be made from only a little bit of substrate.
Answer: FALSE
Section: 03.03
Topic: Cellular respiration
Learning Objective: 03.03.26 Explain the role of negative
feedback in enzyme regulation.
Bloom’s: 2. Understand
HAPS Topic: Module C04 Organic compounds.
79) Enzymes that remove phosphate groups from their substrates
are called ________.
Answer:phosphatases
phosphatase
Section: 03.03
Topic: Energy transfer using ATP
Learning Objective: 03.03.27 Identify and explain the
processes involving phosphate that commonly are used to regulate enzymes.
Bloom’s: 1. Remember
80) Enzyme regulation by negative feedback involves
1. A)
allosteric inhibition of an enzyme by a product of its metabolic pathway.
2. B)
allosteric facilitation of an enzyme by a substrate of its metabolic pathway.
3. C)
allosteric modification of a substrate by an enzyme of an alternate metabolic
pathway.
4. D)
occupation of the active site of an enzyme so that it catalyzes less
efficiently.
5. E)
enhancement of the active site by a negatively charged substrate.
Answer: A
Section: 03.03
Topic: Cellular respiration
Learning Objective: 03.03.26 Explain the role of negative
feedback in enzyme regulation.
Bloom’s: 3. Apply
HAPS Topic: Module C04 Organic compounds.
81) A protein kinase is an enzyme that adds a phosphate to its
substrate.
Answer: TRUE
Section: 03.03
Topic: Energy transfer using ATP
Learning Objective: 03.03.27 Identify and explain the
processes involving phosphate that commonly are used to regulate enzymes.
Bloom’s: 1. Remember
82) Phosphorylation is carried out by a
1. A)
kinase, and it results in the negative feedback inhibition of an enzyme.
2. B)
kinase, and it may activate some enzymes and inhibit others.
3. C)
phosphatase, and it results in the negative feedback inhibition of an enzyme.
4. D)
phosphatase, and it may activate some enzymes and inhibit others.
Answer: B
Section: 03.03
Topic: Energy transfer using ATP
Learning Objective: 03.03.27 Identify and explain the
processes involving phosphate that commonly are used to regulate enzymes.
Bloom’s: 1. Remember
HAPS Topic: Module C04 Organic compounds.
83) Imagine that you discovered an enzyme in the human stomach
that turned the substrate “ABC” into the product “XYZ”. Name this enzyme
(using the standard convention) and describe its chemical characteristics.
Under what conditions would it be an effective catalyst? How might
its activity be regulated?
Answer: The enzyme “ABCase” would work best at or
near human body temperature and at the acidic pH of the stomach. The enzyme is
a globular protein that acts as a catalyst. Its activity might be
regulated in a variety of fashions described in section 3.3 of the book.
Section: 03.03
Topic: Cellular respiration
Learning Objective: 03.03.20 Describe the naming
conventions for enzymes.; 03.03.21 Define how enzyme and substrate concentration
affect reaction rates.; 03.03.22 Explain the effect of temperature on enzymes.;
03.03.23 Describe how pH changes affect enzymes.; 03.03.24 Describe how
competitive and noncompetitive inhibitors control enzyme action.; 03.03.26
Explain the role of negative feedback in enzyme regulation.; 03.03.27 Identify
and explain the processes involving phosphate that commonly are used to
regulate enzymes.
Bloom’s: 5. Evaluate
HAPS Topic: Module C04 Organic compounds.
84) When one glucose molecule is fully oxidized, how many
molecules of CO2 result?
1. A) 1
2. B) 2
3. C) 3
4. D) 6
Answer: D
Section: 03.04
Topic: Cellular respiration
Learning Objective: 03.04.28 Write the overall formula for
glucose oxidation.
Bloom’s: 1. Remember
HAPS Topic: Module C11 Cellular respiration.
85) During cellular respiration, when glucose is
fully disassembled to carbon dioxide and water, the other reactant (with
glucose) in the chemical equation is ________.
Answer:oxygen
O2
Section: 03.04
Topic: Cellular respiration
Learning Objective: 03.04.28 Write the overall formula for
glucose oxidation.
Bloom’s: 2. Understand
HAPS Topic: Module C11 Cellular respiration.
86) Glucose oxidation is exergonic.
Answer: TRUE
Section: 03.04
Topic: Cellular respiration
Learning Objective: 03.04.28 Write the overall formula for
glucose oxidation.
Bloom’s: 2. Understand
HAPS Topic: Module C11 Cellular respiration.
87) In substrate-level phosphorylation, energy is first released
to coenzymes and then transferred to form ATP.
Answer: FALSE
Section: 03.04
Topic: Cellular respiration
Learning Objective: 03.04.29 Name the two pathways that
generate ATP.
Bloom’s: 1. Remember
HAPS Topic: Module C11 Cellular respiration.
88) The indirect method of ATP production involves coenzymes
such as FAD and is referred to as ________ phosphorylation.
Answer: oxidative
Section: 03.04
Topic: Cellular respiration
Learning Objective: 03.04.29 Name the two pathways that
generate ATP.
Bloom’s: 1. Remember
HAPS Topic: Module C11 Cellular respiration.
89) The more common way that ATP is produced in cells is
1. A)
the indirect pathway known as oxidative phosphorylation.
2. B)
the indirect pathway known as substrate-level phosphorylation.
3. C)
the direct pathway known as oxidative phosphorylation.
4. D)
the direct pathway known as substrate-level phosphorylation.
Answer: A
Section: 03.04
Topic: Cellular respiration
Learning Objective: 03.04.29 Name the two pathways that
generate ATP.
Bloom’s: 2. Understand
HAPS Topic: Module C11 Cellular respiration.
90) Which of the following choices lists the order of stages of
cellular respiration in proper order?
1. A)
Glycolysis, intermediate stage, citric acid cycle, and the electron transport
system
2. B)
Citric acid cycle, glycolysis, intermediate stage, and the electron transport
system
3. C)
Glycolysis, citric acid cycle, intermediate stage, and the electron transport
system
4. D)
Glycolysis, intermediate stage, electron transport system, and the citric acid
cycle
5. E) Citric
acid cycle, electron transport chain, intermediate stage, and glycolysis
Answer: A
Section: 03.04
Topic: Cellular respiration
Learning Objective: 03.04.30 List the four stages of
glucose oxidation and where each stage occurs within a cell.
Bloom’s: 1. Remember
HAPS Topic: Module C11 Cellular respiration.
91) The first stage of cellular respiration is
1. A)
electron transport, and it occurs in the cytosol.
2. B)
electron transport, and it occurs in the mitochondria.
3. C)
glycolysis, and it occurs in the cytosol.
4. D)
glycolysis, and it occurs in the mitochondria.
5. E)
the citric acid cycle, and it occurs at the mitochondria.
Answer: C
Section: 03.04
Topic: Cellular respiration
Learning Objective: 03.04.30 List the four stages of glucose
oxidation and where each stage occurs within a cell.
Bloom’s: 1. Remember
HAPS Topic: Module C11 Cellular respiration.
92) Glycolysis requires oxygen.
Answer: FALSE
Section: 03.04
Topic: Cellular respiration
Learning Objective: 03.04.31 Summarize the metabolic
pathway of glycolysis, including (a) where it occurs in a cell, (b) if it
requires oxygen, (c) the initial substrate and final product, and (d) the
molecules formed during energy transfer.
Bloom’s: 1. Remember
HAPS Topic: Module C11 Cellular respiration.
93) The intermediate stage of cellular respiration
1. A)
produces ATP and occurs in the cytosol.
2. B)
produces carbon dioxide and occurs in the mitochondria.
3. C)
requires Coenzyme A and occurs in the cytosol.
4. D)
produces pyruvate and occurs in the mitochondria.
Answer: B
Section: 03.04
Topic: Cellular respiration
Learning Objective: 03.04.32 Explain the enzymatic
reaction of the intermediate stage, including (a) where it occurs in a cell,
(b) if it requires oxygen, (c) the initial substrate and final product, and (d)
the molecules formed during energy transfer.
Bloom’s: 2. Understand
HAPS Topic: Module C11 Cellular respiration.
94) Hexokinase is an enzyme involved in cellular respiration and
its substrate is glucose. Considering this information, hexokinase must
be located
1. A) in
the lumen of the stomach.
2. B) in
the lumen of the small intestine.
3. C)
inside the mitochondria of cells.
4. D) in
the cytosol of cells.
Answer: D
Section: 03.04
Topic: Cellular respiration
Learning Objective: 03.04.31 Summarize the metabolic
pathway of glycolysis, including (a) where it occurs in a cell, (b) if it
requires oxygen, (c) the initial substrate and final product, and (d) the
molecules formed during energy transfer.
Bloom’s: 4. Analyze
HAPS Topic: Module C11 Cellular respiration.
95) In the process of glycolysis
1. A)
one enzyme converts glucose into NADH.
2. B)
two enzymes are involved in breaking glucose down to ten pyruvate molecules.
3. C)
ten enzymes are involved in breaking glucose down to two pyruvate molecules.
4. D)
twelve enzymes split glucose into thirteen smaller molecules.
5. E)
six enzymes use two ATP to split glucose in half.
Answer: C
Section: 03.04
Topic: Cellular respiration
Learning Objective: 03.04.31 Summarize the metabolic
pathway of glycolysis, including (a) where it occurs in a cell, (b) if it
requires oxygen, (c) the initial substrate and final product, and (d) the
molecules formed during energy transfer.
Bloom’s: 2. Understand
HAPS Topic: Module O03 Cellular respiration & the
catabolism & anabolism of carbohydrates, lipids, & proteins.
96) Glycolysis results in the breakdown of a glucose molecule
and the net production of four ATP molecules.
Answer: FALSE
Section: 03.04
Topic: Cellular respiration
Learning Objective: 03.04.31 Summarize the metabolic
pathway of glycolysis, including (a) where it occurs in a cell, (b) if it
requires oxygen, (c) the initial substrate and final product, and (d) the
molecules formed during energy transfer.
Bloom’s: 1. Remember
HAPS Topic: Module O03 Cellular respiration & the
catabolism & anabolism of carbohydrates, lipids, & proteins.
97) During the early steps of glycolysis, glucose is converted
to glucose 6-P, and then glucose 6-P is converted directly to
1. A) aldolase.
2. B)
fructose 6-P.
3. C)
isomerase.
4. D)
pyruvate.
5. E)
NADH.
Answer: B
Section: 03.04
Topic: Cellular respiration
Learning Objective: 03.04.31 Summarize the metabolic
pathway of glycolysis, including (a) where it occurs in a cell, (b) if it
requires oxygen, (c) the initial substrate and final product, and (d) the
molecules formed during energy transfer.
Bloom’s: 1. Remember
HAPS Topic: Module O03 Cellular respiration & the
catabolism & anabolism of carbohydrates, lipids, & proteins.
98) The binding of ATP to phosphofructokinase inhibits the
glycolytic pathway.
Answer: TRUE
Section: 03.04
Topic: Cellular respiration
Learning Objective: 03.04.31 Summarize the metabolic
pathway of glycolysis, including (a) where it occurs in a cell, (b) if it requires
oxygen, (c) the initial substrate and final product, and (d) the molecules
formed during energy transfer.
Bloom’s: 2. Understand
HAPS Topic: Module O03 Cellular respiration & the
catabolism & anabolism of carbohydrates, lipids, & proteins.
99) If insufficient oxygen is available for the anaerobic
breakdown of pyruvate, it is converted to ________.
Answer:lactate
lactic acid
Section: 03.04
Topic: Cellular respiration
Learning Objective: 03.04.38 Explain the fate of pyruvate
when oxygen is in short supply.
Bloom’s: 1. Remember
HAPS Topic: Module C11 Cellular respiration.
100) Pyruvate dehydrogenase is located in the
1. A)
cytosol.
2. B)
cell membrane.
3. C)
outer compartment of the mitochondrion.
4. D)
middle of the crista.
5. E)
matrix of the mitochondrion.
Answer: E
Section: 03.04
Topic: Cellular respiration
Learning Objective: 03.04.32 Explain the enzymatic
reaction of the intermediate stage, including (a) where it occurs in a cell,
(b) if it requires oxygen, (c) the initial substrate and final product, and (d)
the molecules formed during energy transfer.
Bloom’s: 3. Apply
HAPS Topic: Module O03 Cellular respiration & the
catabolism & anabolism of carbohydrates, lipids, & proteins.
101) Which stage of cellular respiration is catalyzed by
pyruvate dehydrogenase?
1. A)
Electron transport system
2. B)
Intermediate stage
3. C)
Citric acid cycle
4. D)
Glycolysis
5. E)
Fermentation to lactate
Answer: B
Section: 03.04
Topic: Cellular respiration
Learning Objective: 03.04.32 Explain the enzymatic
reaction of the intermediate stage, including (a) where it occurs in a cell,
(b) if it requires oxygen, (c) the initial substrate and final product, and (d)
the molecules formed during energy transfer.
Bloom’s: 1. Remember
HAPS Topic: Module O03 Cellular respiration & the
catabolism & anabolism of carbohydrates, lipids, & proteins.
102) Pyruvate dehydrogenase is a multienzyme complex that brings
together a molecule of pyruvate and a molecule of coenzyme A.
Answer: TRUE
Section: 03.04
Topic: Cellular respiration
Learning Objective: 03.04.32 Explain the enzymatic
reaction of the intermediate stage, including (a) where it occurs in a cell,
(b) if it requires oxygen, (c) the initial substrate and final product, and (d)
the molecules formed during energy transfer.
Bloom’s: 1. Remember
HAPS Topic: Module O03 Cellular respiration & the
catabolism & anabolism of carbohydrates, lipids, & proteins.
103) During cellular respiration, decarboxylation occurs when
1. A) a
carbon atom is removed from glucose.
2. B) a
carbon dioxide molecule is removed from the cytosol.
3. C) a
carboxyl group is released from pyruvate.
4. D) a
carbon atom is removed from and an oxygen atom is added to fructose.
5. E)
all carbon and oxygen atoms are released from a high-energy molecule.
Answer: C
Section: 03.04
Topic: Cellular respiration
Learning Objective: 03.04.33 Define decarboxylation.
Bloom’s: 1. Remember
HAPS Topic: Module O03 Cellular respiration & the
catabolism & anabolism of carbohydrates, lipids, & proteins.
104) Decarboxylation occurs during the intermediate stage of
aerobic cellular respiration.
Answer: TRUE
Section: 03.04
Topic: Cellular respiration
Learning Objective: 03.04.33 Define decarboxylation.
Bloom’s: 1. Remember
HAPS Topic: Module O03 Cellular respiration & the
catabolism & anabolism of carbohydrates, lipids, & proteins.
105) During decarboxylation, NAD+ is formed from NADH.
Answer: FALSE
Section: 03.04
Topic: Cellular respiration
Learning Objective: 03.04.33 Define decarboxylation.
Bloom’s: 2. Understand
HAPS Topic: Module O02 Introduction to metabolism.
106) During the citric acid cycle, an acetyl CoA molecule
produced in the intermediate stage combines with a molecule of
1. A)
oxaloacetic acid.
2. B)
pyruvate.
3. C)
citrate.
4. D)
succinate.
Answer: A
Section: 03.04
Topic: Cellular respiration
Learning Objective: 03.04.34 Summarize the metabolic
pathway of the citric acid cycle including (a) where it occurs in a cell, (b)
if it requires oxygen, (c) the initial substrate and final product, and (d) the
molecules formed during energy transfer.
Bloom’s: 1. Remember
HAPS Topic: Module O03 Cellular respiration & the
catabolism & anabolism of carbohydrates, lipids, & proteins.
107) The citric acid cycle involves
1. A) amultienzyme
complex within the cytosol.
2. B)
several enzymes within the matrix of the mitochondrion.
3. C)
amultienzyme complex within the outer compartment of the mitochondrion.
4. D)
several enzymes within the cytosol and the outer membrane of the mitochondrion.
Answer: B
Section: 03.04
Topic: Cellular respiration
Learning Objective: 03.04.34 Summarize the metabolic
pathway of the citric acid cycle including (a) where it occurs in a cell, (b)
if it requires oxygen, (c) the initial substrate and final product, and (d) the
molecules formed during energy transfer.
Bloom’s: 1. Remember
HAPS Topic: Module O03 Cellular respiration & the
catabolism & anabolism of carbohydrates, lipids, & proteins.
108) One turn of the citric acid cycle results in the formation
of
2. A) 1
ATP, 3 NADH, and 1 FADH2.
3. B) 2
pyruvates and 2 ATP.
4. C) 2
ATP, 2 NADH+, and 3 FADH.
5. D) 2
citrates, 4 ATP, and 3 FADH2.
Answer: A
Section: 03.04
Topic: Cellular respiration
Learning Objective: 03.04.34 Summarize the metabolic pathway
of the citric acid cycle including (a) where it occurs in a cell, (b) if it
requires oxygen, (c) the initial substrate and final product, and (d) the
molecules formed during energy transfer.
Bloom’s: 1. Remember
HAPS Topic: Module O03 Cellular respiration & the
catabolism & anabolism of carbohydrates, lipids, & proteins.
109) Oxidative phosphorylation within the electron transport
system accounts for a little less than half of the ATP synthesized from the
breakdown of glucose.
Answer: FALSE
Section: 03.04
Topic: Cellular respiration
Learning Objective: 03.04.36 Explain the actions that take
place in the electron transport system.
Bloom’s: 1. Remember
HAPS Topic: Module O03 Cellular respiration & the
catabolism & anabolism of carbohydrates, lipids, & proteins.
110) The coenzymes that will provide the electrons needed for
the electron transport system are
2. A)
NADH and FADH2.
3. B)
NAD and FAD+.
4. C)
acetyl CoA and citrate.
5. D)
pyruvate and NADH.
6. E)
FAD and decarboxylase.
Answer: A
Section: 03.04
Topic: Cellular respiration
Learning Objective: 03.04.35 Describe the importance of
NADH and FADH2 in energy transfer.
Bloom’s: 2. Understand
HAPS Topic: Module O02 Introduction to metabolism.
111) The electron transport chain
1. A)
does not require oxygen, and involves proteins in the outer membrane of
mitochondria.
2. B)
does not require oxygen, and involves proteins in the cristae of mitochondria.
3. C)
requires oxygen, and involves proteins in the outer membrane of mitochondria.
4. D)
requires oxygen, and involves proteins in the cristae of mitochondria.
Answer: D
Section: 03.04
Topic: Cellular respiration
Learning Objective: 03.04.36 Explain the actions that take
place in the electron transport system.
Bloom’s: 1. Remember
HAPS Topic: Module C11 Cellular respiration.
112) The proteins in the electron transport chain transport H+
1. A)
from the cytosol to the matrix.
2. B)
from the matrix to the outer compartment.
3. C)
from the outer compartment to the cytosol.
4. D)
from the outer compartment to the matrix.
5. E)
from the cristae to the matrix.
Answer: B
Section: 03.04
Topic: Cellular respiration
Learning Objective: 03.04.36 Explain the actions that take
place in the electron transport system.
Bloom’s: 2. Understand
HAPS Topic: Module O03 Cellular respiration & the
catabolism & anabolism of carbohydrates, lipids, & proteins.
Comments
Post a Comment