Question 1

In aerobic respiration,which of following is(are) required for ATP production in the electron transport chain?

Accepted Answer

A)   a proton gradient
B)   the oxidation of the electron carrier molecules
C)   oxygen
D)   movement of electrons through proteins
E)   All of the answer choices are correct.F) A) and B)
G) C) and D)

Question 2

The area enclosed by the highly folded inner mitochondrial membrane is the

Accepted Answer

A)   cytosol.
B)   cristae.
C)   outer membrane.
D)   intermembrane compartment.
E)   mitochondrial matrix.F) C) and D)
G) All of the above

Question 3

Glycolysis has two steps.The first step is the energy investment where ________ is used to activate the glucose molecule.

Accepted Answer

A)   NAD
B)   ATP
C)   FAD
D)   ADP
E)   NADPF) A) and B)
G) None of the above

Question 4

The compound that enters the Krebs cycle is

Accepted Answer

A)   ATP.
B)   pyruvate.
C)   PGAL.
D)   ATP synthase.
E)   acetyl CoA.F) D) and E)
G) A) and D)

Question 5

Fermentation is most common in

Accepted Answer

A)   plants.
B)   animals.
C)   multicellular organisms.
D)   microorganisms.
E)   viruses.F) A) and C)
G) B) and C)

Question 6

Cellular respiration occurs in a sequential order.This allows the cell to

Accepted Answer

A)   store oxygen in the process.
B)   maintain control over the mitochondria.
C)   efficiently breakdown glucose without damaging the cell.
D)   harness all the energy released at one time.
E)   produce the enzymes needed for cellular respiration very slowly.F) A) and B)
G) B) and E)

Question 7

When compared to other foods,fats have the most calories per gram.  For energy to be harvested,the long carbon chains are broken into many two-carbon ________ molecules that enter the Krebs cycle.

Accepted Answer

A)   glucose
B)   pyruvate
C)   acetyl CoA
D)   amino acid
E)   proteinF) All of the above
G) A) and D)

Question 8

Which of the following is not a product of the Krebs cycle?

Accepted Answer

A)   ATP
B)   carbon dioxide
C)   NADH
D)   FADH₂
E)   pyruvateF) All of the above
G) A) and D)

Question 9

Some microorganisms live in anaerobic environments.These organisms can produce ATP using fermentation which involves

Accepted Answer

A)   glycolysis.
B)   the Krebs cycle.
C)   photosynthesis.
D)   electron transport.
E)   the Calvin cycle.F) B) and E)
G) C) and D) A

Question 10

As a result of glycolysis,glucose is

Accepted Answer

A)   broken down into two molecules of carbon dioxide.
B)   combined to form two molecules of pyruvate.
C)   combined to form two molecules of carbon dioxide.
D)   broken down into two molecules of pyruvate.
E)   broken down into two molecules of oxygen.F) B) and D)
G) All of the above

Question 11

The reactants for cellular respiration are

Accepted Answer

A)   glucose and ATP.
B)   water and ATP.
C)   oxygen and ATP.
D)   glucose and oxygen.
E)   carbon dioxide and glucose.F) A) and B)
G) C) and D) D

Question 12

Glycolysis of a glucose molecule

Accepted Answer

A)   produces a net gain of two molecules of ATP.
B)   occurs only in animal cells.
C)   transfers electrons to FAD.
D)   occurs only in microorganisms.
E)   occurs in mitochondria.F) B) and E)
G) D) and E)

Question 13

The electron transport chain produces a(n) ________ gradient that provides energy for the ATP synthase.

Accepted Answer

A)   electron
B)   ATP
C)   NADH
D)   oxygen
E)   protonF) A) and E)
G) A) and D)

Question 14

Aerobic respiration uses oxygen as its final electron acceptor at the end of the electron transport chain.

Accepted Answer

A) True 
 B)False

Question 15

What is the role of oxygen in aerobic respiration?

Accepted Answer

A)   It is formed from the oxidation of water at the beginning of the electron transport chain.
B)   It flows through the electron transport chain, losing energy.
C)   It is reduced at the end of the electron transport chain, forming water.
D)   It is necessary to obtain any ATP from glucose.
E)   It flows down its concentration gradient through an ATPase to produce ATP.F) B) and E)
G) All of the above

Question 16

In the Investigating Life,Hot Plants Offer Heat Rewards,what did scientists conclude about beetles and self-heating flowers?

Accepted Answer

A)   At higher temperatures resting beetles saved energy.
B)   At higher temperatures active beetles saved energy.
C)   At lower temperatures active beetles saved energy.
D)   At lower temperatures resting beetles saved energy.
E)   Generating heat led to increased pollination of Philodendron flowers by beetles.F) B) and D)
G) D) and E)

Question 17

In the electron transport chain,if some of the protons are utilized for other functions in the cell and do not flow through the ATP synthase,then

Accepted Answer

A)   fewer ATP will be made.
B)   fewer glucose molecules are needed.
C)   more ATP will be made.
D)   more glucose molecules are needed.
E)   more carbon dioxide molecules are generated.F) A) and E)
G) A) and B)

Question 18

In animal cells,the primary organelle that generates molecules of ATP is the

Accepted Answer

A)   ribosome.
B)   lysosome.
C)   golgi body.
D)   mitochondrion.
E)   No answer is correct.F) A) and B)
G) None of the above D

Question 19

Aerobic respiration includes glycolysis,the Krebs cycle,and electron transport chain.

Accepted Answer

A) True 
 B)False

Question 20

Animals are

Accepted Answer

A)   net O₂ producers and CO₂ consumers.
B)   net O₂ and CO₂ producers.
C)   net O₂ consumers and CO₂ producers.
D)   net O₂ and CO₂ consumers.
E)   able to conduct photosynthesis, not cellular respiration.F) A) and D)
G) C) and D)

Exam 6: Respiration and Fermentation

In aerobic respiration,which of following is(are) required for ATP production in the electron transport chain?

Correct AnswerverifiedShow Answer

The area enclosed by the highly folded inner mitochondrial membrane is the

Correct AnswerverifiedShow Answer

Glycolysis has two steps.The first step is the energy investment where ________ is used to activate the glucose molecule.

Correct AnswerverifiedShow Answer

The compound that enters the Krebs cycle is

Correct AnswerverifiedShow Answer

Fermentation is most common in

Correct AnswerverifiedShow Answer

Cellular respiration occurs in a sequential order.This allows the cell to

Correct AnswerverifiedShow Answer

When compared to other foods,fats have the most calories per gram. For energy to be harvested,the long carbon chains are broken into many two-carbon ________ molecules that enter the Krebs cycle.

Correct AnswerverifiedShow Answer

Which of the following is not a product of the Krebs cycle?

Correct AnswerverifiedShow Answer

Some microorganisms live in anaerobic environments.These organisms can produce ATP using fermentation which involves

Correct AnswerverifiedA

As a result of glycolysis,glucose is

Correct AnswerverifiedShow Answer

The reactants for cellular respiration are

Correct AnswerverifiedD

Glycolysis of a glucose molecule

Correct AnswerverifiedShow Answer

The electron transport chain produces a(n) ________ gradient that provides energy for the ATP synthase.

Correct AnswerverifiedShow Answer

Aerobic respiration uses oxygen as its final electron acceptor at the end of the electron transport chain.

Correct AnswerverifiedShow Answer

What is the role of oxygen in aerobic respiration?

Correct AnswerverifiedShow Answer

In the Investigating Life,Hot Plants Offer Heat Rewards,what did scientists conclude about beetles and self-heating flowers?

Correct AnswerverifiedShow Answer

In the electron transport chain,if some of the protons are utilized for other functions in the cell and do not flow through the ATP synthase,then

Correct AnswerverifiedShow Answer

In animal cells,the primary organelle that generates molecules of ATP is the

Correct AnswerverifiedD

Aerobic respiration includes glycolysis,the Krebs cycle,and electron transport chain.

Correct AnswerverifiedShow Answer

Animals are

Correct AnswerverifiedShow Answer

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A

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D

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D

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