Question 1

Which process produces alcohol or lactate?

Accepted Answer

A)  the citric acid cycle
B)  glycolysis
C)  the electron transport system
D)  fermentation
E)  the preparatory reaction

Question 2

What is the correct summary for the energy investment vs.energy harvesting steps of glycolysis?

Accepted Answer

A)  2 ATP are invested and 4 ATP are harvested to produce a net gain of 2 ATP.
B)  4 ATP are invested and 6 ATP are harvested to produce a net gain of 2 ATP.
C)  No ATP are invested and 2 ATP are harvested to produce a net gain of 2 ATP.
D)  2 ATP are invested and no ATP are harvested to produce a net loss of 2 ATP.

Question 3

Aerobic respiration involves oxidation - reduction and the movement of electrons from one molecule to another.Study the figure to identify A and B as either oxidation or reduction.

Accepted Answer

Cellular respiration involves the comple...

Question 4

Glycolysis is a catabolic process.

Accepted Answer

A) True 
 B)False

Question 5

The correct sequence for aerobic metabolic breakdown of glucose is

Accepted Answer

A)  glycolysis-preparatory reaction-citric acid cycle-electron transport system.
B)  preparatory reaction-glycolysis-electron transport-citric acid cycle.
C)  electron transport system-citric acid cycle-preparatory reaction-glycolysis.
D)  None of the choices are correct.

Question 6

Compared with other components found in a plant cell such as the cell membrane,the chloroplasts or the nucleus,the mitochondria would be the only one that would

Accepted Answer

A)  form an electrochemical gradient across a membrane.
B)  use significant amounts of oxygen to produce ATP.
C)  use a chemiosmotic complex to produce ATP.
D)  produce ATP via glycolysis.
E)  release protons (H+) .

Question 7

The final electron acceptor in glycolysis is oxygen and this step will occur within the matrix of the mitochondria.

Accepted Answer

A) True 
 B)False

Question 8

Which process produces both NADH and FADH2?

Accepted Answer

A)  the citric acid cycle
B)  glycolysis
C)  the electron transport system
D)  fermentation
E)  the preparatory reaction

Question 9

Adult humans cannot synthesize ________ out of the ________ common amino acids.

Accepted Answer

A)  eleven; twenty
B)  nine; eleven
C)  nine; twenty
D)  any; twenty
E)  half; all

Question 10

Aerobic cellular respiration yields about ________ of the energy of glucose in ATP molecules.

Accepted Answer

A)  2%
B)  15%
C)  28%
D)  39%

Question 11

Some bacteria are strict aerobes and others are strict anaerobes.Some bacteria,however,are facultative anaerobes and can live with or without oxygen.If given the choice of using oxygen or not,which pathway should a facultative anaerobe perform?

Accepted Answer

A)  Use oxygen since aerobic metabolism provides more ATP per molecule of carbohydrate than anaerobic metabolism.
B)  Avoid using oxygen since anaerobic metabolism provides more ATP per molecule of carbohydrate than aerobic metabolism.
C)  It doesn't matter; both processes will produce the same results.

Question 12

Degradative reactions

Accepted Answer

A)  cause death.
B)  can drive anabolic reactions.
C)  tend to be endergonic.
D)  include the buildup of products such as complex proteins and nucleic acids.
E)  All of the choices are true.

Question 13

The electron transport chain and chemiosmosis produce ________ ATP from each NADH and ________ ATP from each FADH2 entering the system.

Accepted Answer

A)  4; 2
B)  3; 2
C)  2; 4
D)  2; 3

Question 14

The preparatory reaction converts

Accepted Answer

A)  glucose into pyruvates.
B)  pyruvates into glucose.
C)  pyruvates into acetyl CoA and carbon dioxide.
D)  pyruvates into acetyl CoA and water.
E)  acetyl CoA into pyruvates and carbon dioxide.

Question 15

Which statement is correct about the input and output of carbon during glycolysis?

Accepted Answer

A)  There is an input of 6 carbons (glucose) and an output of 6 carbons (2 pyruvates) .
B)  There is an input of 6 carbons (2 pyruvates) and an output of 6 carbons (1 glucose) .
C)  There is an input of 6 carbons (glucose) and an output of 6 carbons (6 CO2) .
D)  There is an input of 6 carbons (glucose) and an output of 3 carbons (pyruvate) .

Question 16

Some desert beetles can live without ever drinking liquid water.They survive on "metabolic water," which

Accepted Answer

A)  is water obtained from eating other organisms.
B)  is water absorbed directly from the atmosphere.
C)  is water formed during the electron transport chain.
D)  is water formed during glycolysis.
E)  is water that was stored in the beetle's tissue during its larval stage.

Question 17

During glycolysis ________ carbons will enter the pathway and ________ carbons will leave in the form of pyruvates.

Accepted Answer

A)  6; 6
B)  6; 3
C)  3; 6
D)  12; 6
E)  oxaloacetate

Question 18

Identify "B."

Accepted Answer

A)  inner membrane
B)  matrix
C)  cristae
D)  intermembrane space
E)  outer membrane

Question 19

Why is it beneficial for pyruvate to be reduced via fermentation when oxygen is not available?

Accepted Answer

A)  The organism can survive short spells of anaerobic conditions and maintain growth and reproduction.
B)  The fermentation reaction regenerates NAD+,which is required for the first step in the energy-harvesting phase of glycolysis.
C)  Fermentation can provide a rapid burst of ATP.
D)  All of the choices are advantages.
E)  None of the choices is an advantage.

Question 20

Normally our body will run aerobic respiration in order to produce the required amount of ATP to sustain life.When we run out of oxygen we will shift over to anaerobic respiration.What is the value of anaerobic respiration to our system?

Accepted Answer

During aerobic respiration we will be pr...

Exam 8: Cellular Respiration

Normally our body will run aerobic respiration in order to produce the required amount of ATP to sustain life.When we run out of oxygen we will shift over to anaerobic respiration.What is the value of anaerobic respiration to our system?

Correct AnswerverifiedDuring aerobic respiration we will be pr...View AnswerShow Answer

Which process produces both NADH and FADH2?

Correct AnswerverifiedShow Answer

Why is it beneficial for pyruvate to be reduced via fermentation when oxygen is not available?

Correct AnswerverifiedShow Answer

What is the correct summary for the energy investment vs.energy harvesting steps of glycolysis?

Correct AnswerverifiedShow Answer

Compared with other components found in a plant cell such as the cell membrane,the chloroplasts or the nucleus,the mitochondria would be the only one that would

Correct AnswerverifiedShow Answer

Glycolysis is a catabolic process.

Correct AnswerverifiedShow Answer

Some bacteria are strict aerobes and others are strict anaerobes.Some bacteria,however,are facultative anaerobes and can live with or without oxygen.If given the choice of using oxygen or not,which pathway should a facultative anaerobe perform?

Correct AnswerverifiedShow Answer

Which process produces alcohol or lactate?

Correct AnswerverifiedShow Answer

Some desert beetles can live without ever drinking liquid water.They survive on "metabolic water," which

Correct AnswerverifiedShow Answer

Which statement is correct about the input and output of carbon during glycolysis?

Correct AnswerverifiedShow Answer

Identify "B."

Correct AnswerverifiedShow Answer

During glycolysis ________ carbons will enter the pathway and ________ carbons will leave in the form of pyruvates.

Correct AnswerverifiedShow Answer

Degradative reactions

Correct AnswerverifiedShow Answer

The preparatory reaction converts

Correct AnswerverifiedShow Answer

Aerobic cellular respiration yields about ________ of the energy of glucose in ATP molecules.

Correct AnswerverifiedShow Answer

The correct sequence for aerobic metabolic breakdown of glucose is

Correct AnswerverifiedShow Answer

Adult humans cannot synthesize ________ out of the ________ common amino acids.

Correct AnswerverifiedShow Answer

The electron transport chain and chemiosmosis produce ________ ATP from each NADH and ________ ATP from each FADH2 entering the system.

Correct AnswerverifiedShow Answer

Aerobic respiration involves oxidation - reduction and the movement of electrons from one molecule to another.Study the figure to identify A and B as either oxidation or reduction.

Correct AnswerverifiedCellular respiration involves the comple...View AnswerShow Answer

The final electron acceptor in glycolysis is oxygen and this step will occur within the matrix of the mitochondria.

Correct AnswerverifiedShow Answer

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During aerobic respiration we will be pr...
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Which process produces both NADH and FADH₂?

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During glycolysis carbons will enter the pathway and carbons will leave in the form of pyruvates.

Correct Answer
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Adult humans cannot synthesize out of the common amino acids.

Correct Answer
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The electron transport chain and chemiosmosis produce ATP from each NADH and ATP from each FADH₂ entering the system.

Correct Answer
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Correct Answer
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Cellular respiration involves the comple...
View Answer

Correct Answer
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