Question 1

In a lab setting, heating a vessel full of reactants will generally

Accepted Answer

A)   increase the kinetic energy of the molecules and increase the reaction rate.
B)   raise the activation energy and catalyze the reaction.
C)   lower the activation energy and the kinetic energy of the reactants.
D)   convert products to reactants by increasing the energy requirements.
E)   lower the reaction rate due to the change in structure of the reactants.F) All of the above
G) A) and E)

Question 2

The total number of ATP generated by the breakdown of glucose is 38, but the net number of ATP generated is

Accepted Answer

A)   2.
B)   24.
C)   30.
D)   36.
E)   40.F) A) and B)
G) A) and E)

Question 3

The net ATP available for a cell to use after glycolysis of one glucose molecule is ________.

Accepted Answer

The answer of The net ATP available for a cell...

Question 4

Generally, a decrease in substrate concentration leads to an increase in reaction rate.

Accepted Answer

A) True 
 B)False

Question 5

Diseases of the respiratory or circulatory systems that impair oxygen delivery to body cells will diminish ATP production in those cells.

Accepted Answer

A) True 
 B)False

Question 6

In the absence of the enzyme carbonic anhydrase, the combination of water and carbon dioxide to form carbonic acid does not occur.

Accepted Answer

A) True 
 B)False

Question 7

The energy of motion is known as ________ energy.

Accepted Answer

The answer of The energy of motion is known as...

Question 8

Glycolysis results in the breakdown of a glucose molecule and the net production of four ATP molecules.

Accepted Answer

A) True 
 B)False

Question 9

As a runner sprints down a track, her movement is an example of

Accepted Answer

A)   potential energy.
B)   mechanical energy.
C)   heat.
D)   radiant energy.
E)   chemical energy.F) A) and B)
G) C) and D)

Question 10

Noncompetitive inhibition of an enzyme occurs when the inhibitor binds to the

Accepted Answer

A)   allosteric site, and its effectiveness is not influenced by substrate concentration.
B)   allosteric site, and its effectiveness depends on substrate concentration.
C)   active site, and its effectiveness is not influenced by substrate concentration.
D)   active site, and its effectiveness depends on substrate concentration.
E)   substrate, and its effectiveness depends on product concentration.F) A) and B)
G) A) and E)

Question 11

If insufficient oxygen is available for the anaerobic breakdown of pyruvate, it is converted to ________.

Accepted Answer

The answer of If insufficient oxygen is available for the...

Question 12

If oxygen is in short supply, the activity of the electron transport chain increases in order to compensate.

Accepted Answer

A) True 
 B)False

Question 13

________ is a monomer that is stored as the polymer glycogen within the liver and muscle.

Accepted Answer

The answer of ________ is a monomer that is stored...

Question 14

In the process of glycolysis

Accepted Answer

A)   one enzyme converts glucose into NADH.
B)   two enzymes are involved in breaking glucose down to ten pyruvate molecules.
C)   ten enzymes are involved in breaking glucose down to two pyruvate molecules.
D)   twelve enzymes split glucose into thirteen smaller molecules.
E)   six enzymes use two ATP to split glucose in half.F) B) and D)
G) B) and E)

Question 15

Pyruvate dehydrogenase is a multienzyme complex that brings together a molecule of pyruvate and a molecule of coenzyme A.

Accepted Answer

A) True 
 B)False

Question 16

Which enzyme class splits a chemical bond in the absence of water?

Accepted Answer

A)   Ligase
B)   Oxidoreductase
C)   Lyase
D)   Hydrolase
E)   DehydrogenaseF) D) and E)
G) B) and C)

Question 17

The more common way that ATP is produced in cells is

Accepted Answer

A)   the indirect pathway known as oxidative phosphorylation.
B)   the indirect pathway known as substrate-level phosphorylation.
C)   the direct pathway known as oxidative phosphorylation.
D)   the direct pathway known as substrate-level phosphorylation.E) All of the above
F) B) and C)

Question 18

Oxidative phosphorylation within the electron transport system accounts for a little less than half of the ATP synthesized from the breakdown of glucose.

Accepted Answer

A) True 
 B)False

Question 19

The indirect method of ATP production involves coenzymes such as FAD and is referred to as ________ phosphorylation.

Accepted Answer

The answer of The indirect method of ATP production involves...

Question 20

Typically, synthesis reactions are endergonic.

Accepted Answer

A) True 
 B)False

Exam 3: Energy, Chemical Reactions, and Cellular Respiration

Diseases of the respiratory or circulatory systems that impair oxygen delivery to body cells will diminish ATP production in those cells.

Correct AnswerverifiedShow Answer

In a lab setting, heating a vessel full of reactants will generally

Correct AnswerverifiedShow Answer

Generally, a decrease in substrate concentration leads to an increase in reaction rate.

Correct AnswerverifiedShow Answer

If oxygen is in short supply, the activity of the electron transport chain increases in order to compensate.

Correct AnswerverifiedShow Answer

Oxidative phosphorylation within the electron transport system accounts for a little less than half of the ATP synthesized from the breakdown of glucose.

Correct AnswerverifiedShow Answer

________ is a monomer that is stored as the polymer glycogen within the liver and muscle.

Correct AnswerverifiedShow Answer

Typically, synthesis reactions are endergonic.

Correct AnswerverifiedShow Answer

Which enzyme class splits a chemical bond in the absence of water?

Correct AnswerverifiedShow Answer

In the absence of the enzyme carbonic anhydrase, the combination of water and carbon dioxide to form carbonic acid does not occur.

Correct AnswerverifiedShow Answer

Glycolysis results in the breakdown of a glucose molecule and the net production of four ATP molecules.

Correct AnswerverifiedShow Answer

The indirect method of ATP production involves coenzymes such as FAD and is referred to as ________ phosphorylation.

Correct AnswerverifiedShow Answer

The energy of motion is known as ________ energy.

Correct AnswerverifiedShow Answer

As a runner sprints down a track, her movement is an example of

Correct AnswerverifiedShow Answer

In the process of glycolysis

Correct AnswerverifiedShow Answer

Noncompetitive inhibition of an enzyme occurs when the inhibitor binds to the

Correct AnswerverifiedShow Answer

Pyruvate dehydrogenase is a multienzyme complex that brings together a molecule of pyruvate and a molecule of coenzyme A.

Correct AnswerverifiedShow Answer

The more common way that ATP is produced in cells is

Correct AnswerverifiedShow Answer

The net ATP available for a cell to use after glycolysis of one glucose molecule is ________.

Correct AnswerverifiedShow Answer

If insufficient oxygen is available for the anaerobic breakdown of pyruvate, it is converted to ________.

Correct AnswerverifiedShow Answer

The total number of ATP generated by the breakdown of glucose is 38, but the net number of ATP generated is

Correct AnswerverifiedShow Answer

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