Question 1

There is a net gain of four ATPs as a result of glycolysis.

Accepted Answer

A) True 
 B)False

Question 2

NADH and FADH2 bring electrons to the electron transport chain during cellular respiration.

Accepted Answer

A) True 
 B)False

Question 3

Where does the preparatory reaction take place within the cell?

Accepted Answer

A)  mitochondrial matrix 
B)  mitochondrial cristae 
C)  nucleus 
D)  cytoplasm 
E)  endoplasmic reticulum 
A)  mitochondrial matrix 
B)  mitochondrial cristae 
C)  nucleus 
D)  cytoplasm 
E)  endoplasmic reticulum

Question 4

Which molecule(s) is/are the product(s) of anaerobic respiration?

Accepted Answer

A)  glucose and carbon dioxide 
B)  lactate and oxygen 
C)  carbon dioxide 
D)  pyruvate 
E)  pyruvate and oxygen 
A)  glucose and carbon dioxide 
B)  lactate and oxygen 
C)  carbon dioxide 
D)  pyruvate 
E)  pyruvate and oxygen

Question 5

The only end product of alcoholic fermentation is the alcohol.

Accepted Answer

A) True 
 B)False

Question 6

Which is a correct statement about the preparatory reaction?

Accepted Answer

A)  It connects glycolysis directly to the electron transport chain. 
B)  O2 is given off. 
C)  Pyruvate is converted to lactate. 
D)  NAD+ goes to NADH + H+ as acetyl-CoA forms. 
E)  The reaction occurs once per glucose molecule. 
A)  It connects glycolysis directly to the electron transport chain. 
B)  O2 is given off. 
C)  Pyruvate is converted to lactate. 
D)  NAD+ goes to NADH + H+ as acetyl-CoA forms. 
E)  The reaction occurs once per glucose molecule.

Question 7

The final products of glycolysis are

Accepted Answer

A)  2 pyruvate, 2 ATP, and 2 NADH + H+. 
B)  1 pyruvate and 2 ATP. 
C)  1 pyruvate and 2 NADH + H+. 
D)  2 ATP and 2 NADH + H+. 
E)  2 pyruvate. 
A)  2 pyruvate, 2 ATP, and 2 NADH + H+. 
B)  1 pyruvate and 2 ATP. 
C)  1 pyruvate and 2 NADH + H+. 
D)  2 ATP and 2 NADH + H+. 
E)  2 pyruvate.

Question 8

Glycolysis is likely to have evolved before the citric acid cycle and electron transport chain because

Accepted Answer

A)  it has an older fossil record. 
B)  it is found in all living organisms. 
C)  it occurs inside the mitochondria. 
D)  the process is found in all primitive bacteria but lacking in many advanced organisms. 
E)  it produces more ATP than do the citric acid cycle and electron transport chain. 
A)  it has an older fossil record. 
B)  it is found in all living organisms. 
C)  it occurs inside the mitochondria. 
D)  the process is found in all primitive bacteria but lacking in many advanced organisms. 
E)  it produces more ATP than do the citric acid cycle and electron transport chain.

Question 9

What phase(s) of cellular respiration produce(s) NADH + H+?

Accepted Answer

A)  glycolysis 
B)  preparatory reaction 
C)  citric acid cycle 
D)  glycolysis and preparatory reaction 
E)  glycolysis, preparatory reaction, and citric acid cycle 
A)  glycolysis 
B)  preparatory reaction 
C)  citric acid cycle 
D)  glycolysis and preparatory reaction 
E)  glycolysis, preparatory reaction, and citric acid cycle

Question 10

Why is ATP used as the energy molecule of the cell?

Accepted Answer

A)  ATP is easy to synthesize within the cell. 
B)  ATP contains large amounts of energy so at least some of it can be used by the cell. 
C)  ATP contains just about the amount of energy required for most cellular reactions. 
D)  ATP is stored inside the cell where it is readily available whenever needed. 
E)  ATP can be broken down into carbon dioxide and water. 
A)  ATP is easy to synthesize within the cell. 
B)  ATP contains large amounts of energy so at least some of it can be used by the cell. 
C)  ATP contains just about the amount of energy required for most cellular reactions. 
D)  ATP is stored inside the cell where it is readily available whenever needed. 
E)  ATP can be broken down into carbon dioxide and water.

Question 11

Which is a correct association of mitochondrion structure and phase of cellular respiration?

Accepted Answer

A)  matrix - electron transport chain 
B)  cristae - preparatory reaction 
C)  matrix - citric acid cycle 
D)  matrix - glycolysis 
E)  cristae - glycolysis 
A)  matrix - electron transport chain 
B)  cristae - preparatory reaction 
C)  matrix - citric acid cycle 
D)  matrix - glycolysis 
E)  cristae - glycolysis

Question 12

Which of the following best defines substrate-level ATP synthesis?

Accepted Answer

A)  An enzyme passes a high-energy phosphate to ADP, resulting in ATP. 
B)  ATP is used to activate glucose for glycolysis. 
C)  An exergonic reaction is used to drive the synthesis of ATP from ADP plus phosphate. 
D)  Oxidation of a substrate results in a high-energy bond. 
E)  ATP is synthesized from adenosine plus three phosphates. 
A)  An enzyme passes a high-energy phosphate to ADP, resulting in ATP. 
B)  ATP is used to activate glucose for glycolysis. 
C)  An exergonic reaction is used to drive the synthesis of ATP from ADP plus phosphate. 
D)  Oxidation of a substrate results in a high-energy bond. 
E)  ATP is synthesized from adenosine plus three phosphates.

Question 13

In cellular respiration, what is the relationship between the energy content of the reactants (glucose and O2) and products (CO2 and H2O)?

Accepted Answer

A)  The energy content of the reactants (glucose and O2) must equal the energy content of the products (CO2 and H2O). 
B)  The energy content of the reactants (glucose and O2) must be greater than the energy content of the products (CO2 and H2O). 
C)  The energy content of the reactants (glucose and O2) must be less than the energy content of the products (CO2 and H2O). 
D)  There is no relationship between the energy content of the reactants (glucose and O2) and the energy content of the products (CO2 and H2O). 
E)  There is no relationship between O2 and H2O, but the energy content of glucose is less than that of CO2. 
A)  The energy content of the reactants (glucose and O2) must equal the energy content of the products (CO2 and H2O). 
B)  The energy content of the reactants (glucose and O2) must be greater than the energy content of the products (CO2 and H2O). 
C)  The energy content of the reactants (glucose and O2) must be less than the energy content of the products (CO2 and H2O). 
D)  There is no relationship between the energy content of the reactants (glucose and O2) and the energy content of the products (CO2 and H2O). 
E)  There is no relationship between O2 and H2O, but the energy content of glucose is less than that of CO2.

Question 14

The most efficient method to produce ATP in animal cells is by glycolysis.

Accepted Answer

A) True 
 B)False

Question 15

The production of ATP as a result of an electrochemical gradient is called

Accepted Answer

A)  glycolysis. 
B)  substrate-level phosphorylation. 
C)  chemiosmosis. 
D)  deamination. 
E)  oxidative phosphorylation. 
A)  glycolysis. 
B)  substrate-level phosphorylation. 
C)  chemiosmosis. 
D)  deamination. 
E)  oxidative phosphorylation.

Question 16

Which of the following would increase the electron transport system's production of ATP?

Accepted Answer

A)  limiting the amount of oxygen available 
B)  decreasing use of ATP and thus reducing available ADP 
C)  reducing synthesis of NAD+ and FAD 
D)  adding an NADH reductase inhibitor 
E)  adding additional hydrogen ions into the intermembrane space of the mitochondria 
A)  limiting the amount of oxygen available 
B)  decreasing use of ATP and thus reducing available ADP 
C)  reducing synthesis of NAD+ and FAD 
D)  adding an NADH reductase inhibitor 
E)  adding additional hydrogen ions into the intermembrane space of the mitochondria

Question 17

Which of the following pathways produces of the majority of ATP?

Accepted Answer

A)  glycolysis 
B)  citric acid cycle 
C)  Calvin cycle 
D)  electron transport chain 
E)  preparatory reaction (prep) 
A)  glycolysis 
B)  citric acid cycle 
C)  Calvin cycle 
D)  electron transport chain 
E)  preparatory reaction (prep)

Question 18

List, in order, the stages of aerobic cellular respiration and indicate where they occur in the cell.

Accepted Answer

Glycolysis is first and it occurs within

Question 19

Why is fermentation important in animals?

Accepted Answer

A)  It is the best reaction we can utilize to produce ATP. 
B)  It produces lactate, which is essential for animals. 
C)  It produces carbon dioxide, which is necessary for our cells. 
D)  It generates the NAD+ we need for metabolism. 
E)  It helps to recycle NAD+ molecules and allows glycolysis to proceed with ATP production. 
A)  It is the best reaction we can utilize to produce ATP. 
B)  It produces lactate, which is essential for animals. 
C)  It produces carbon dioxide, which is necessary for our cells. 
D)  It generates the NAD+ we need for metabolism. 
E)  It helps to recycle NAD+ molecules and allows glycolysis to proceed with ATP production.

Question 20

What is the correct order of phases in cellular respiration?

Accepted Answer

A)  citric acid cycle, prep reaction, glycolysis, electron transport chain 
B)  electron transport chain, glycolysis, prep reaction, citric acid cycle 
C)  prep reaction, glycolysis, electron transport chain, citric acid cycle 
D)  glycolysis, prep reaction, citric acid cycle, electron transport chain 
E)  glycolysis, citric acid cycle, prep reaction, electron transport chain 
A)  citric acid cycle, prep reaction, glycolysis, electron transport chain 
B)  electron transport chain, glycolysis, prep reaction, citric acid cycle 
C)  prep reaction, glycolysis, electron transport chain, citric acid cycle 
D)  glycolysis, prep reaction, citric acid cycle, electron transport chain 
E)  glycolysis, citric acid cycle, prep reaction, electron transport chain

Exam 7: Cellular Respiration

There is a net gain of four ATPs as a result of glycolysis.

NADH and FADH2 bring electrons to the electron transport chain during cellular respiration.

Where does the preparatory reaction take place within the cell?

Which molecule(s) is/are the product(s) of anaerobic respiration?

The only end product of alcoholic fermentation is the alcohol.

Which is a correct statement about the preparatory reaction?

The final products of glycolysis are

Glycolysis is likely to have evolved before the citric acid cycle and electron transport chain because

What phase(s) of cellular respiration produce(s) NADH + H+?

Why is ATP used as the energy molecule of the cell?

Which is a correct association of mitochondrion structure and phase of cellular respiration?

Which of the following best defines substrate-level ATP synthesis?

In cellular respiration, what is the relationship between the energy content of the reactants (glucose and O2) and products (CO2 and H2O)?

The most efficient method to produce ATP in animal cells is by glycolysis.

The production of ATP as a result of an electrochemical gradient is called

Which of the following would increase the electron transport system's production of ATP?

Which of the following pathways produces of the majority of ATP?

List, in order, the stages of aerobic cellular respiration and indicate where they occur in the cell.

Why is fermentation important in animals?

What is the correct order of phases in cellular respiration?

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NADH and FADH₂ bring electrons to the electron transport chain during cellular respiration.

What phase(s) of cellular respiration produce(s) NADH + H⁺?

In cellular respiration, what is the relationship between the energy content of the reactants (glucose and O₂) and products (CO₂ and H₂O)?