Question 1

Philodendron flowers pass electrons through a mitochondrial electron transport chain to generate heat.What step is bypassed in generating heat?

Accepted Answer

A)  Formation of a proton gradient
B)  Transfer of electrons to oxygen
C)  Donation of electrons to the electron transport chain
D)  Excitation of electrons by sunlight
E)  Release of electrons from waterF) None of the above
G) B) and C)

Question 2

If a high-energy "donor" molecule physically transfers a phosphate group to ADP,this is called:

Accepted Answer

A)  Photosynthesis
B)  Oxidative phosphorylation
C)  Substrate-level phosphorylation
D)  Electron transport
E)  GlycolysisF) A) and E)
G) A) and D)

Question 3

The first steps in glycolysis involve:

Accepted Answer

A)  Lysing glucose into two 3C molecules
B)  Reducing glucose
C)  Adding two phosphates from ATP to glucose
D)  Generation of ATP
E)  Donation of electrons from NADH to an electron transporterF) A) and E)
G) A) and C)

Question 4

If you put a plant in a chamber and shine a light on it,the concentrations ______.

Accepted Answer

A)  of O2 will rise and CO2 will fall
B)  of O2 will fall and CO2 will rise
C)  of both O2 and CO2 will rise
D)  of both O2 and CO2 will fallE) A) and D)
F) None of the above

Question 5

The chemical formula for glucose is:

Accepted Answer

A)  C6H12O6
B)  C12H6O12
C)  C6H6O12
D)  C12H12O6
E)  All are correctF) C) and D)
G) A) and B)

Question 6

The electrons that are transferred during cellular respiration are carried in the molecules:

Accepted Answer

A)  NADP and FADH2
B)  NADH and FADH2
C)  NADH and NADP
D)  NADH2 and Glucose
E)  NADP and GlucoseF) A) and D)
G) A) and E)

Question 7

When NAD+ picks up two electrons from a reaction in the Krebs cycle to form NADH,the NAD+ is being:

Accepted Answer

A)  Oxidized
B)  Phosphorylated
C)  Reduced
D)  Hydrolyzed
E)  LysedF) All of the above
G) D) and E)

Question 8

The enzyme that forms a channel in the inner membrane of the mitochondria and phosphorylates ADP is:

Accepted Answer

A)  ATP Synthase
B)  NADH Synthase
C)  FADH2 Synthase
D)  ADP Synthase
E)  None of these are correctF) A) and E)
G) C) and D)

Question 9

In glycolysis and the Krebs cycle electrons are removed from glucose and taken up by molecules like NAD+.In such a reaction,glucose is being _____ and NAD+ is being ____.

Accepted Answer

A)  Reduced, oxidized
B)  Oxidized, reduced
C)  Phosphorylated, oxidized
D)  Phosphorylated, reduced
E)  Reduced, phosphorylatedF) A) and D)
G) C) and D)

Question 10

Cellular respiration includes only the Kreb's cycle and electron transport.

Accepted Answer

A) True 
 B)False

Question 11

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

Accepted Answer

The answer of Oxidative phosphorylation occurs when protons pass through...

Question 12

Philodendron flowers pass electrons through an electron transport chain to generate heat.What is the source of these electrons?

Accepted Answer

A)  Water
B)  Oxygen
C)  ATP
D)  Sunlight
E)  NADH and FADH2F) A) and B)
G) A) and D)

Question 13

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

Accepted Answer

A)  Ribosome
B)  Lysosome
C)  Golgi body
D)  None of these are correct
E)  MitochondrionF) All of the above
G) D) and E)

Question 14

Most plants are:

Accepted Answer

A)  Autotrophic endotherms
B)  Autotrophic ecotherms
C)  Heterotrophic ectotherms
D)  Heterotrophic endothermsE) A) and D)
F) A) and C)

Question 15

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

Accepted Answer

A) True 
 B)False

Question 16

Fermentation is a more efficient form of energy production than aerobic respiration.

Accepted Answer

A) True 
 B)False

Question 17

What is the role of oxygen in 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 as it goes
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 ATPF) A) and B)
G) C) and D)

Question 18

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

Accepted Answer

A)  Ability to pollinate flowers
B)  Rate of photosynthesis
C)  Body temperature
D)  Level of activity
E)  Rate of respirationF) C) and E)
G) D) and E)

Question 19

How can glycolysis produce ATP in the absence of oxygen?

Accepted Answer

A)  All are correct
B)  By ATPase linked to the mitochondrial electron transport chain
C)  By attaching a phosphate ion to ADP
D)  By exciting electrons using photons of light
E)  By substrate level phosphorylationF) A) and B)
G) C) and E)

Question 20

Glycolysis occurs in the:

Accepted Answer

A)  Cytoplasm
B)  Mitochondria
C)  Lysosome
D)  Nucleus
E)  Cell membraneF) C) and E)
G) A) and B)

Exam 6: How Cells Release Energy

Fermentation is a more efficient form of energy production than aerobic respiration.

Correct AnswerverifiedShow Answer

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

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Philodendron flowers pass electrons through a mitochondrial electron transport chain to generate heat.What step is bypassed in generating heat?

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How can glycolysis produce ATP in the absence of oxygen?

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The first steps in glycolysis involve:

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Most plants are:

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What is the role of oxygen in respiration?

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

Correct AnswerverifiedShow Answer

The enzyme that forms a channel in the inner membrane of the mitochondria and phosphorylates ADP is:

Correct AnswerverifiedShow Answer

The chemical formula for glucose is:

Correct AnswerverifiedShow Answer

If a high-energy "donor" molecule physically transfers a phosphate group to ADP,this is called:

Correct AnswerverifiedShow Answer

When NAD+ picks up two electrons from a reaction in the Krebs cycle to form NADH,the NAD+ is being:

Correct AnswerverifiedShow Answer

In glycolysis and the Krebs cycle electrons are removed from glucose and taken up by molecules like NAD+.In such a reaction,glucose is being _____ and NAD+ is being ____.

Correct AnswerverifiedShow Answer

Glycolysis occurs in the:

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

Correct AnswerverifiedShow Answer

Philodendron flowers pass electrons through an electron transport chain to generate heat.What is the source of these electrons?

Correct AnswerverifiedShow Answer

If you put a plant in a chamber and shine a light on it,the concentrations ______.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

The electrons that are transferred during cellular respiration are carried in the molecules:

Correct AnswerverifiedShow Answer

Cellular respiration includes only the Kreb's cycle and electron transport.

Correct AnswerverifiedShow Answer

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When NAD⁺ picks up two electrons from a reaction in the Krebs cycle to form NADH,the NAD⁺ is being:

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In glycolysis and the Krebs cycle electrons are removed from glucose and taken up by molecules like NAD⁺.In such a reaction,glucose is being _ and NAD⁺ is being .

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