Question 1

The reactions in glycolysis are reversible,however,the conversion of pyruvate into acetyl CoA is irreversible in animal cells.Can fatty acids be converted back into carbohydrates?

Accepted Answer

A)   No, because they enter metabolism as acetyl CoA.
B)   No, because they enter metabolism as pyruvate.
C)   Yes, because they enter metabolism as pyruvate.
D)   Yes, because they enter metabolism in the Krebs cycle.
E)   Yes, because they enter metabolism as acetyl CoA.F) A) and B)
G) A) and E)

Question 2

Chemiosmotic phosphorylation occurs when protons pass through ATP synthase and combine with oxygen to make water.

Accepted Answer

A) True 
 B)False

Question 3

During glycolysis molecules of glucose are

Accepted Answer

A)   broken down in oxidation, liberating the carbon atoms as CO2.
B)   bonded in a reduction to form three molecules of pyruvate.
C)   broken down into three molecules of pyruvate.
D)   bonded covalently to form two molecules of pyruvate.
E)   broken down by enzymes to form two molecules of pyruvate.F) B) and C)
G) B) and D)

Question 4

The space and fluid enclosed by the highly folded inner mitochondrial membrane is the

Accepted Answer

A)   outer membrane.
B)   nucleus.
C)   cytoplasm.
D)   None of the answer choices are correct.
E)   matrix.F) C) and D)
G) A) and E)

Question 5

The three main biochemical pathways of cellular respiration are

Accepted Answer

A)   Calvin cycle, Krebs cycle, and light reactions.
B)   light reactions, carbon reactions, and electron transport.
C)   glycolysis, Krebs cycle, and electron transport.
D)   glycolysis, light reactions, and Calvin cycle.
E)   Krebs cycle, Calvin cycle, and electron transport.F) A) and E)
G) B) and C)

Question 6

Cellular aerobic respiration includes glycolysis,the Krebs cycle,and electron transport.

Accepted Answer

A) True 
 B)False  True

Question 7

Animals are net

Accepted Answer

A)   O2 and CO2 consumers.
B)   O2 producers and CO2 consumers.
C)   O2 consumers and CO2 producers.
D)   O2 and CO2 producers.E) A) and B)
F) C) and D)

Question 8

The compound that enters the Krebs cycle as a reactant is

Accepted Answer

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

Question 9

The rate of carbon dioxide production by Cyclocephala colasi beetles was used to measure their

Accepted Answer

A)   rate of photosynthesis.
B)   ability to pollinate flowers.
C)   level of activity.
D)   rate of respiration.
E)   body temperature.F) B) and D)
G) C) and D)

Question 10

Only a small amount of ATP is produced during glycolysis because most of the energy stored in a glucose molecule remains in the bonds of

Accepted Answer

A)   carbon dioxide.
B)   PGAL.
C)   NADH.
D)   pyruvate.
E)   None of the answer choices are correct.F) B) and D)
G) C) and D) D

Question 11

Anaerobic respiration is most common in

Accepted Answer

A)   animals.
B)   archaeans.
C)   fungi.
D)   plants.E) A) and B)
F) A) and C) B

Question 12

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

Accepted Answer

A) True 
 B)False

Question 13

The sequence of membrane proteins of the electron transport chain includes three transport proteins and other electron transport proteins.As the electrons from original glucose molecules move through the proteins,work is done.The electron transport chain produces a(n) _____________ concentration gradient.

Accepted Answer

A)   NADH
B)   ATP
C)   electron
D)   proton
E)   oxygenF) B) and E)
G) A) and B)

Question 14

Molecules called uncouplers allow protons to cross the inner mitochondrial membrane.What effect would this have on ATP production in the mitochondria?

Accepted Answer

A)   ATP production would not change, because protons cross the outer mitochondrial membrane to produce ATP.
B)   ATP production would increase, because this would spontaneously establish a proton gradient, for powering ATP synthase.
C)   ATP production would increase, because this would make more oxygen available in the mitochondrial matrix.
D)   ATP production would decrease, because electrons would not be able to move through the electron transport chain.
E)   ATP production would decrease, because the proton gradient, for powering ATP synthase, would dissipate.F) D) and E)
G) A) and B)

Question 15

The products of cellular respiration are

Accepted Answer

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

Question 16

On a class field trip,students swabbed,dug,and dipped samples of life from numerous places around campus.Back in lab,one of the organisms found was unknown to the professor,or any reference books available.It came from the edge of a marsh,and the sample smelled of hydrogen sulfide (rotten eggs) .The single cells were found to survive only in a container that had sulfate in it,but also had the oxygen removed by burning a candle.This is likely an organism that uses _____ for cellular respiration.

Accepted Answer

A)   alcohol fermentation
B)   lactic acid fermentation
C)   aerobic respiration
D)   only glycolysis
E)   anaerobic respirationF) A) and E)
G) A) and B)

Question 17

Philodendron flowers have to use a lot of energy to attract beetles as pollinators.This is similar to the energy used by many other flowering plants to produce ____ in order to attract pollinators.

Accepted Answer

A)   seeds
B)   leaves
C)   pollen
D)   spores
E)   nectarF) A) and B)
G) A) and C)

Question 18

Consider when an African rock python eats a Thomson's gazelle and begins breaking the gazelle down into component molecules with digestive acids.The digestion described is an example of cellular respiration.

Accepted Answer

A) True 
 B)False

Question 19

Fermentation is most common in

Accepted Answer

A)   fungi, decomposing dead plants.
B)   human muscle cells.
C)   both human muscle cells, and intestinal bacteria.
D)   bacteria, in mammal intestines.
E)   plants, at night.F) B) and D)
G) None of the above

Question 20

The process of a high-energy "donor" molecule physically transferring a phosphate group to ADP is called

Accepted Answer

A)   electron transport.
B)   glycolysis.
C)   photosynthesis.
D)   oxidative phosphorylation.
E)   substrate-level phosphorylation.F) A) and D)
G) B) and E)

Exam 6: How Cells Release Energy

The reactions in glycolysis are reversible,however,the conversion of pyruvate into acetyl CoA is irreversible in animal cells.Can fatty acids be converted back into carbohydrates?

Correct Answer
verified

Chemiosmotic phosphorylation occurs when protons pass through ATP synthase and combine with oxygen to make water.

Correct Answer
verified

During glycolysis molecules of glucose are

Correct Answer
verified

The space and fluid enclosed by the highly folded inner mitochondrial membrane is the

Correct Answer
verified

The three main biochemical pathways of cellular respiration are

Correct Answer
verified

Cellular aerobic respiration includes glycolysis,the Krebs cycle,and electron transport.

Correct Answer
verified
True

Animals are net

Correct Answer
verified

The compound that enters the Krebs cycle as a reactant is

Correct Answer
verified

The rate of carbon dioxide production by Cyclocephala colasi beetles was used to measure their

Correct Answer
verified

Only a small amount of ATP is produced during glycolysis because most of the energy stored in a glucose molecule remains in the bonds of

Correct Answer
verified
D

Anaerobic respiration is most common in

Correct Answer
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B

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

Correct Answer
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Correct Answer
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Molecules called uncouplers allow protons to cross the inner mitochondrial membrane.What effect would this have on ATP production in the mitochondria?

Correct Answer
verified

The products of cellular respiration are

Correct Answer
verified

Correct Answer
verified

Philodendron flowers have to use a lot of energy to attract beetles as pollinators.This is similar to the energy used by many other flowering plants to produce ____ in order to attract pollinators.

Correct Answer
verified

Consider when an African rock python eats a Thomson's gazelle and begins breaking the gazelle down into component molecules with digestive acids.The digestion described is an example of cellular respiration.

Correct Answer
verified

Fermentation is most common in

Correct Answer
verified

The process of a high-energy "donor" molecule physically transferring a phosphate group to ADP is called

Correct Answer
verified

Exam 6: How Cells Release Energy

The reactions in glycolysis are reversible,however,the conversion of pyruvate into acetyl CoA is irreversible in animal cells.Can fatty acids be converted back into carbohydrates?

Correct AnswerverifiedShow Answer

Chemiosmotic phosphorylation occurs when protons pass through ATP synthase and combine with oxygen to make water.

Correct AnswerverifiedShow Answer

During glycolysis molecules of glucose are

Correct AnswerverifiedShow Answer

The space and fluid enclosed by the highly folded inner mitochondrial membrane is the

Correct AnswerverifiedShow Answer

The three main biochemical pathways of cellular respiration are

Correct AnswerverifiedShow Answer

Cellular aerobic respiration includes glycolysis,the Krebs cycle,and electron transport.

Correct AnswerverifiedTrue

Animals are net

Correct AnswerverifiedShow Answer

The compound that enters the Krebs cycle as a reactant is

Correct AnswerverifiedShow Answer

The rate of carbon dioxide production by Cyclocephala colasi beetles was used to measure their

Correct AnswerverifiedShow Answer

Only a small amount of ATP is produced during glycolysis because most of the energy stored in a glucose molecule remains in the bonds of

Correct AnswerverifiedD

Anaerobic respiration is most common in

Correct AnswerverifiedB

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

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

Molecules called uncouplers allow protons to cross the inner mitochondrial membrane.What effect would this have on ATP production in the mitochondria?

Correct AnswerverifiedShow Answer

The products of cellular respiration are

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

Philodendron flowers have to use a lot of energy to attract beetles as pollinators.This is similar to the energy used by many other flowering plants to produce ____ in order to attract pollinators.

Correct AnswerverifiedShow Answer

Consider when an African rock python eats a Thomson's gazelle and begins breaking the gazelle down into component molecules with digestive acids.The digestion described is an example of cellular respiration.

Correct AnswerverifiedShow Answer

Fermentation is most common in

Correct AnswerverifiedShow Answer

The process of a high-energy "donor" molecule physically transferring a phosphate group to ADP is called

Correct AnswerverifiedShow Answer

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True

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D

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B

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