Question 1

Plants use photosynthesis to

Accepted Answer

A)   store chemical energy, and they use cellular respiration to harvest energy.
B)   store as well as harvest chemical energy.
C)   harvest energy, and they use cellular respiration to store chemical energy.
D)   obtain carbon dioxide.E) C) and D)
F) None of the above

Question 2

Which of the following is a result of glycolysis?

Accepted Answer

A)   production of CO2
B)   conversion of glucose to pyruvic acid
C)   a net loss of two ATPs per glucose molecule
D)   conversion of NADH to NAD+E) None of the above
F) All of the above

Question 3

Humans are both

Accepted Answer

A)   heterotrophs and consumers.
B)   heterotrophs and autotrophs.
C)   producers and consumers.
D)   autotrophs and producers.E) C) and D)
F) None of the above A

Question 4

Large amounts of oxygen gas first appeared in Earth's atmosphere about ______ years ago.

Accepted Answer

A)   500,000
B)   10 million
C)   2.7 billion
D)   3.5 billionE) C) and D)
F) B) and D)

Question 5

Photosynthetic organisms are ______.

Accepted Answer

A)   producers that make all of their organic matter from organic molecules that they take in
B)   consumers that obtain organic molecules from other living organisms
C)   producers that make all their own organic matter from inorganic molecules
D)   decomposers that obtain nutrients from the soilE) A) and C)
F) None of the above

Question 6

During cellular respiration,electrons move through a series of electron acceptor molecules.Which of the following is a true statement about this process?

Accepted Answer

A)   The electrons gain energy as they move from one electron acceptor to another.
B)   Oxygen is eventually reduced by the electrons to form water.
C)   The electrons release large amounts of energy each time they are transferred from one electron acceptor to another.
D)   Glucose is eventually reduced by the electrons to form water.E) C) and D)
F) B) and C)

Question 7

Which of the following metabolic pathways is common to both aerobic and anaerobic processes of sugar breakdown?

Accepted Answer

A)   the citric acid cycle
B)   the electron transport chain
C)   conversion of pyruvic acid to lactic acid
D)   glycolysisE) A) and C)
F) None of the above

Question 8

Electron transport takes place in the ______.

Accepted Answer

A)   mitochondria
B)   chloroplasts
C)   cytoplasm
D)   ribosomesE) A) and D)
F) B) and D)

Question 9

What must pyruvic acid be converted to before it can enter the citric acid cycle?

Accepted Answer

A)   acetyl CoA
B)   lactic acid
C)   ethyl alcohol
D)   citric acidE) A) and B)
F) A) and C)

Question 10

The first electron acceptor of cellular respiration is ______.

Accepted Answer

A)   CO2
B)   O2
C)   NAD+
D)   H2OE) B) and C)
F) A) and B) C

Question 11

Respiration describes the exchange of gases between your blood and the outside air.Cellular respiration ______.

Accepted Answer

A)   produces ATP
B)   produces oxygen
C)   produces glucose
D)   uses carbon dioxideE) A) and D)
F) B) and C)

Question 12

What waste product do yeast produce under anaerobic conditions?

Accepted Answer

A)   ethyl alcohol
B)   pyruvic acid
C)   lactic acid
D)   creatineE) All of the above
F) A) and D)

Question 13

ATP synthase plays a role in ______.

Accepted Answer

A)   pulling electrons down the electron transport chain
B)   glycolysis
C)   pumping hydrogen ions across the inner mitochondrial membrane
D)   generating ATPE) None of the above
F) A) and C)

Question 14

Where in the cell does glycolysis occur?

Accepted Answer

A)   cytoplasm
B)   ER
C)   within the fluid just inside the inner mitochondrial membrane
D)   between the inner and outer mitochondrial membraneE) B) and D)
F) A) and B)

Question 15

Plant cells ______.

Accepted Answer

A)   do not need chloroplasts because their mitochondria meet their energy needs
B)   have chloroplasts and mitochondria
C)   use carbon dioxide but do not use oxygen
D)   do not need mitochondria because their chloroplasts meet their energy needsE) All of the above
F) A) and B)

Question 16

In aerobic respiration,how many molecules of acetic acid are produced from six molecules of glucose?

Accepted Answer

A)   1
B)   38
C)   6
D)   12E) A) and B)
F) B) and C)

Question 17

The figure below shows

Accepted Answer

A)   the synthesis of ADP
B)   the breakdown of ATP to perform cellular work
C)   the removal of a phosphate group from ADP
D)   the synthesis of ATP through the addition of a phosphate groupE) B) and C)
F) B) and D) D

Question 18

Aerobic cellular respiration generates about ______ ATP from one glucose.

Accepted Answer

A)   2
B)   6
C)   38
D)   The number generated depends on whether the end product of aerobic respiration is lactic acid or ethyl alcohol.E) A) and D)
F) A) and B)

Question 19

A child is born with a rare disease in which mitochondria are missing from certain skeletal muscle cells.Physicians find that the muscle cells function.Not surprisingly,they also find that ______.

Accepted Answer

A)   the muscles contain large amounts of lactic acid following even mild physical exercise
B)   the muscles contain large amounts of carbon dioxide following even mild physical exercise
C)   the muscles require extremely high levels of oxygen to function
D)   the muscle cells cannot split glucose to pyruvic acidE) None of the above
F) All of the above

Question 20

In cellular respiration,most ATP is produced directly as a result of ______.

Accepted Answer

A)   the movement of hydrogen ions across the inner mitochondrial membrane
B)   the citric acid cycle
C)   fermentation
D)   the electron transport chainE) B) and D)
F) C) and D)

Exam 6: Cellular Respiration: Obtaining Energy from Food

Plants use photosynthesis to

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Which of the following is a result of glycolysis?

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Humans are both

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Large amounts of oxygen gas first appeared in Earth's atmosphere about ______ years ago.

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Photosynthetic organisms are ______.

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During cellular respiration,electrons move through a series of electron acceptor molecules.Which of the following is a true statement about this process?

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Which of the following metabolic pathways is common to both aerobic and anaerobic processes of sugar breakdown?

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Electron transport takes place in the ______.

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What must pyruvic acid be converted to before it can enter the citric acid cycle?

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The first electron acceptor of cellular respiration is ______.

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Respiration describes the exchange of gases between your blood and the outside air.Cellular respiration ______.

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What waste product do yeast produce under anaerobic conditions?

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ATP synthase plays a role in ______.

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Where in the cell does glycolysis occur?

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Plant cells ______.

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In aerobic respiration,how many molecules of acetic acid are produced from six molecules of glucose?

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The figure below shows

Correct AnswerverifiedD

Aerobic cellular respiration generates about ______ ATP from one glucose.

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A child is born with a rare disease in which mitochondria are missing from certain skeletal muscle cells.Physicians find that the muscle cells function.Not surprisingly,they also find that ______.

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In cellular respiration,most ATP is produced directly as a result of ______.

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C

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D

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