Biology

Sylvia S. Mader, Michael Windelspecht

Chapter 8

Cellular Respiration - all with Video Answers

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Chapter Questions

Problem 1

The metabolic process that produces the most ATP molecules is
a. glycolysis.
b. the citric acid cycle.
c. the electron transport chain.
d. fermentation.

Bryan Lynn

Bryan Lynn

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Problem 2

Which one of these pathways would not be active in an aerobic condition?
a. glycolysis
b. electron transport chain
c. citric acid cycle
d. fermentation
e. All of these would be active.

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Problem 3

The reduction of NAD+ produces
a. acetyl CoA.
b. pyruvate.
c. NADH.
d. oxygen gas.

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Problem 4

During glycolysis, what is the net production of ATP per glucose
molecule?
a. 0 d. 8
b. 1 e. 32
c. 2

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Problem 5

The process of glycolysis occurs where in the cell?
a. chloroplasts
b. mitocondrion
c. nucleus
d. cytoplasm

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Problem 6

Which of the following is not produced by glycolysis?
a. NADH
b. pyruvate
c. ATP
d. FADH$_{2}

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Problem 7

Which of these is not true of fermentation?
a. There is a net gain of only two ATP per glucose.
b. It occurs in cytoplasm.
c. NADH donates electrons to the electron transport chain.
d. It begins with glucose.
e. It is carried on by yeast.

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Problem 8

Fermentation is primarily involved in the recycling of
a. ADP.
b. NAD+.
c. oxygen.
d. glucose.

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Problem 9

The greatest contributor of electrons to the electron transport
chain is
a. oxygen. d. the prep reaction.
b. glycolysis. e. fermentation.
c. the citric acid cycle.

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Problem 10

Which of these is not true of the citric acid cycle?
a. The citric acid cycle includes the prep reaction.
b. The citric acid cycle produces ATP by substrate-level ATP synthesis.
c. The citric acid cycle occurs in the mitochondria.
d. The citric acid cycle produces two ATP per glucose molecule.

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Problem 11

Which of these is not true of the electron transport chain?
a. The electron transport chain is located on the cristae of the mitochindria.
b. The electron transport chain produces more NADH than any metabolic pathway.
c. The electron transport chain contains cytochrome molecules.
d. The electron transport chain ends when oxygen accepts electrons.

Jorge Villanueva

Jorge Villanueva

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Problem 12

The oxygen required by cellular respiration is reduced and
becomes part of which molecule?
a. ATP c. pyruvate
b. ${H}_{2} {O}$ d. ${CO}_{2}$

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Problem 13

Fatty acids are broken down to
a. pyruvate molecules, which take electrons to the electron transport chain.
b. acetyl groups, which enter the citric acid cycle.
c. amino acids, which excrete ammonia.
d. glycerol, which is found in fats.
e. All of these are correct.

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Problem 14

Which of the following is not common to the chloroplast and mitochondria?
a. Both use membranes to establish gradients.
b. Both have an ETC.
c. Both use sunlight as a source of energy.
d. Both use a variety of enzymes.

Nalvi Duro

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