Question 1

During glycolysis,to "activate" glucose ________ molecules of ____________ are required.

Accepted Answer

A)  Three, NAD
B)  Two, ATP
C)  Two, FAD
D)  Three, ADP
E)  Three, ATPF) None of the above
G) A) and D)

Question 2

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)  Reduction, because electrons would not be able to move through the electron transport chain
B)  Reduction, because protons would not be available to pass through the ATPase
C)  No effect, because protons cross the outer mitochondrial membrane to produce ATP
D)  Increase, because this would spontaneously establish a proton gradient
E)  Increase, because this would make more oxygen available in the mitochondrial matrixF) B) and D)
G) A) and D)

Question 3

Cyanide and carbon monoxide block the final step in the electron transport chain.What effect would this have on ATP production in the mitochondria?

Accepted Answer

A)  Reduction, because protons would not be able to move across the inner mitochondrial membrane
B)  No effect, because protons cross the outer mitochondrial membrane to produce ATP
C)  Reduction, because electrons would not be able to move through the electron transport chain
D)  Increase, because this would spontaneously establish a proton gradient
E)  Increase, because this would make more oxygen available in the mitochondrial matrixF) All of the above
G) B) and E) C

Question 4

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

Accepted Answer

A) True 
 B)False

Question 5

According to the first law of thermodynamics some energy is lost as heat during energy transfers.

Accepted Answer

A) True 
 B)False

Question 6

figure 6.14 
-What did the scientists conclude from figure 6.14?

Accepted Answer

A)  That at higher temperatures resting beetles saved energy
B)  That at higher temperatures active beetles saved energy
C)  That at lower temperatures active beetles saved energy
D)  That at lower temperatures resting beetles saved energy
E)  That generating heat led to increased pollination of Philodendron flowers by beetlesF) D) and E)
G) All of the above

Question 7

Since the Kreb's cycle is a cyclic pathway the original acceptor needed to start the Kreb's cycle and the end product of the Kreb's cycle are:

Accepted Answer

A)  Enzymes
B)  Different molecules
C)  ATP molecules
D)  The same molecule
E)  NADH and FADH2 respectivelyF) B) and C)
G) B) and E)

Question 8

Fermentation is most common in:

Accepted Answer

A)  Plants
B)  Animals
C)  Fungi
D)  MicroorganismsE) None of the above
F) All of the above

Question 9

Alcoholic fermentation:

Accepted Answer

A)  Is carried out by yeasts
B)  Produces far less ATP than aerobic respiration
C)  Produces ethanol
D)  All are correct
E)  Produces carbon dioxideF) A) and B)
G) C) and D)

Question 10

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

Accepted Answer

A)  Cytoplasm
B)  Nucleus
C)  Outer membrane
D)  Both cytoplasm and nucleus are correct
E)  MatrixF) All of the above
G) None of the above

Question 11

Another function of the Kreb's cycle other than to continue the breakdown of glucose is to:

Accepted Answer

A)  Manufacture fats and amino acids
B)  Manufacture fats
C)  Manufacture amino acids and provide oxygen to cells
D)  Manufacture amino acids
E)  Provide oxygen to cellsF) C) and D)
G) A) and C)

Question 12

If you put a plant in a chamber and place it in the dark,the concentrations ______.

Accepted Answer

A)  of O2 will fall and CO2 will rise
B)  of O2 will rise and CO2 will fall
C)  of both O2 and CO2 will rise
D)  of both O2 and CO2 will fallE) A) and C)
F) All of the above

Question 13

During fermentation ___ ATP can be produced per glucose,compared with ____ by aerobic respiration.

Accepted Answer

A)  30, 2
B)  6, 30
C)  2, 30
D)  30, 6
E)  2, 6F) B) and D)
G) B) and C)

Question 14

In Eukaryotic cells the electron transport system occurs in the mitochondria.

Accepted Answer

A) True 
 B)False

Question 15

Which of the following could be electron acceptors in anaerobic respiration?

Accepted Answer

A)  Nitrate or oxygen
B)  Sulfate or oxygen
C)  Lactic acid
D)  Nitrate or sulfate
E)  All are correctF) D) and E)
G) None of the above

Question 16

Anaerobic respiration is most common in:

Accepted Answer

A)  Microorganisms
B)  Plants
C)  Animals
D)  FungiE) C) and D)
F) A) and C) A

Question 17

Mitochondria have two membranes.How is this important in the function of mitochondria?

Accepted Answer

A)  Glycolysis occurs in the membranes
B)  Protons are pumped into the space between the membranes
C)  Oxygen is transported across the membranes
D)  Without two membranes the mitochondria may rupture due to osmosis
E)  The Krebs cycle enzymes are found on the outer mitochondrial membraneF) A) and B)
G) A) and E)

Question 18

If a person is burning only glucose what will be the ratio of oxygen consumed to carbon dioxide produced?

Accepted Answer

A)  1:1
B)  1:2
C)  2:1
D)  6:1
E)  1:6F) A) and E)
G) A) and B)

Question 19

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

Accepted Answer

A) True 
 B)False

Question 20

The electron transport system occurs in the:

Accepted Answer

A)  Lysosome.
B)  Nucleus.
C)  Cytoplasm.
D)  Ribosome.
E)  Mitochondria.F) A) and E)
G) C) and D) E

Exam 6: How Cells Release Energy

During glycolysis,to "activate" glucose ________ molecules of ____________ are required.

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

Cyanide and carbon monoxide block the final step in the electron transport chain.What effect would this have on ATP production in the mitochondria?

Correct AnswerverifiedC

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

Correct AnswerverifiedShow Answer

According to the first law of thermodynamics some energy is lost as heat during energy transfers.

Correct AnswerverifiedShow Answer

figure 6.14 -What did the scientists conclude from figure 6.14?

Correct AnswerverifiedShow Answer

Since the Kreb's cycle is a cyclic pathway the original acceptor needed to start the Kreb's cycle and the end product of the Kreb's cycle are:

Correct AnswerverifiedShow Answer

Fermentation is most common in:

Correct AnswerverifiedShow Answer

Alcoholic fermentation:

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Another function of the Kreb's cycle other than to continue the breakdown of glucose is to:

Correct AnswerverifiedShow Answer

If you put a plant in a chamber and place it in the dark,the concentrations ______.

Correct AnswerverifiedShow Answer

During fermentation ___ ATP can be produced per glucose,compared with ____ by aerobic respiration.

Correct AnswerverifiedShow Answer

In Eukaryotic cells the electron transport system occurs in the mitochondria.

Correct AnswerverifiedShow Answer

Which of the following could be electron acceptors in anaerobic respiration?

Correct AnswerverifiedShow Answer

Anaerobic respiration is most common in:

Correct AnswerverifiedA

Mitochondria have two membranes.How is this important in the function of mitochondria?

Correct AnswerverifiedShow Answer

If a person is burning only glucose what will be the ratio of oxygen consumed to carbon dioxide produced?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

The electron transport system occurs in the:

Correct AnswerverifiedE

During glycolysis,to "activate" glucose molecules of ____ are required.

Correct Answer
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During fermentation _ ATP can be produced per glucose,compared with __ by aerobic respiration.

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A

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