Question 1

Acetyl-CoA is produced from

Accepted Answer

A)  pyruvate and a coenzyme.
B)  citric acid and a coenzyme.
C)  ATP and pyruvate.
D)  CO2 and pyruvate.
E)  citric acid and CO2.F) A) and E)
G) A) and B)

Question 2

h  Substrates that reoccur in several metabolic pathways form the metabolic pool.Study the figure to match the substrates with the corresponding pathway.

Accepted Answer

A)  A is glycerol; B is amino acids; C is glucose; D is fatty acids
B)  A is glucose; B is fatty acids; C is glycerol; D is amino acids
C)  A is amino acids; B is fatty acids; C is glucose; D is glycerol
D)  A is amino acids; B is glucose; C is glycerol; D is fatty acidsE) A) and C)
F) B) and D)

Question 3

Each molecule of NADH produced in the mitochondria provides the energy for two ATP molecules.

Accepted Answer

A) True 
 B)False

Question 4

Identify 'c' as the _____

Accepted Answer

A)  inner membrane
B)  matrix
C)  cristae
D)  intermembrane space
E)  outer membraneF) A) and D)
G) C) and D)

Question 5

Identify 'd' as the _____

Accepted Answer

A)  inner membrane
B)  matrix
C)  cristae
D)  intermembrane space
E)  outer membraneF) C) and D)
G) A) and C)

Question 6

During glycolysis _____ carbons will enter the pathway but _____ carbons will leave in the form of pyruvates.

Accepted Answer

A)  6 & 6
B)  6 & 3
C)  3 & 6
D)  12 & 6
E)  oxaloacetateF) All of the above
G) A) and B)

Question 7

Compared with other cell components (organelles,cell membrane or nucleus) ,the mitochondria would be the only one that would

Accepted Answer

A)  form an electrochemical gradient across a membrane.
B)  use significant amounts of oxygen to produce ATP.
C)  use a chemiosmotic complex to produce ATP.
D)  produce ATP via glycolysis.
E)  release protons (H+) .F) A) and D)
G) A) and C)

Question 8

Glycolysis will yield a net of 2 ATP only during aerobic respiration.

Accepted Answer

A) True 
 B)False

Question 9

Glycolysis produces 1 pyruvate and 3 NADH coenzymes.

Accepted Answer

A) True 
 B)False

Question 10

Degradative reactions

Accepted Answer

A)  cause death.
B)  can drive anabolism.
C)  tend to be endergonic.
D)  include the buildup of products such as complex proteins and nucleic acids.
E)  All of the choices are true.F) B) and E)
G) B) and C)

Question 11

Which of these processes occurs in the cytosol?

Accepted Answer

A)  the citric acid cycle
B)  glycolysis
C)  the electron transport system
D)  the preparatory reactionE) B) and C)
F) None of the above

Question 12

The carbon dioxide we exhale is produced in

Accepted Answer

A)  glycolysis.
B)  the electron transport system.
C)  lactate fermentation.
D)  the citric acid cycle.E) None of the above
F) A) and C)

Question 13

During glycolysis _____ carbons will enter the pathway but _____ carbons will leave in the form of pyruvates.

Accepted Answer

A)  6 & 6
B)  6 & 3
C)  3 & 6
D)  12 & 6
E)  oxaloacetateF) C) and E)
G) B) and E)

Question 14

h  Substrates that reoccur in several metabolic pathways form the metabolic pool.Study the figure to place the items in proper order.

Accepted Answer

A)  A is Electron transport chain; B is Pyruvate; C is Citric acid cycle
B)  A is Citric acid cycle; B is Electron transport chain; C is Pyruvate
C)  A is Pyruvate; B is Citric acid cycle; C is Electron transport chainD) All of the above
E) B) and C)

Question 15

Which statement is correct about the input and output of carbon during glycolysis?

Accepted Answer

A)  there is an input of 6 carbons (glucose) and an output of 6 carbons (2 pyruvates) 
B)  there is an input of 6 carbons (2 pyruvates) and an output of 6 carbons (1 glucose) 
C)  there is an input of 6 carbons (glucose) and an output of 6 carbons (6 CO2) 
D)  there is an input of 3 carbons (glucose) and an output of 3 carbons (pyruvate) E) B) and D)
F) A) and D)

Question 16

Aerobic cellular respiration yields about ____ of the energy of glucose in ATP molecules.

Accepted Answer

A)  2%
B)  15%
C)  28%
D)  39%E) C) and D)
F) B) and D)

Question 17

One turn of the citric acid cycle produces

Accepted Answer

A)  2 NADH,FADH2,2 ATP.
B)  3 NADH,1 FADH2,1 ATP.
C)  1 NADH,3 FADH2,2 ATP.
D)  3 NADH,2 FADH2,1 ATP.
E)  3 NADH,1 FADH2,2 ATP.F) A) and C)
G) B) and C)

Question 18

Why would an organism utilize alcohol fermentation if it is wasteful of the energy in food molecules and poses a threat of death due to high levels of toxic alcohol?

Accepted Answer

A)  The organism can survive short spells of anaerobic conditions and maintain growth and reproduction.
B)  If glucose levels are not high,there may be time to disperse the alcohol "waste."
C)  Fermentation can provide a rapid burst of ATP since it does not have to go through the full breakdown cycle.
D)  All of the choices are advantages.
E)  None of the choices is an advantage; anaerobes only survive where aerobes cannot.F) B) and D)
G) A) and D)

Question 19

Chloroplast are capable of running photosynthesis which is the most abundant form of anabolic metabolism in life.

Accepted Answer

A) True 
 B)False

Question 20

The preparatory reaction breaks

Accepted Answer

A)  glucose into pyruvates.
B)  pyruvates into glucose.
C)  pyruvates into acetyl-CoA and carbon dioxide.
D)  pyruvates into acetyl-CoA and water.
E)  acetyl CoA into pyruvates and carbon dioxide.F) A) and B)
G) A) and C)

Exam 8: Cellular Respiration

h Substrates that reoccur in several metabolic pathways form the metabolic pool.Study the figure to match the substrates with the corresponding pathway.

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During glycolysis _____ carbons will enter the pathway but _____ carbons will leave in the form of pyruvates.

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Degradative reactions

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Acetyl-CoA is produced from

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Glycolysis will yield a net of 2 ATP only during aerobic respiration.

Correct AnswerverifiedShow Answer

The preparatory reaction breaks

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Aerobic cellular respiration yields about ____ of the energy of glucose in ATP molecules.

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One turn of the citric acid cycle produces

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Glycolysis produces 1 pyruvate and 3 NADH coenzymes.

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Why would an organism utilize alcohol fermentation if it is wasteful of the energy in food molecules and poses a threat of death due to high levels of toxic alcohol?

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During glycolysis _____ carbons will enter the pathway but _____ carbons will leave in the form of pyruvates.

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Identify 'c' as the _____

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h Substrates that reoccur in several metabolic pathways form the metabolic pool.Study the figure to place the items in proper order.

Correct AnswerverifiedShow Answer

Chloroplast are capable of running photosynthesis which is the most abundant form of anabolic metabolism in life.

Correct AnswerverifiedShow Answer

The carbon dioxide we exhale is produced in

Correct AnswerverifiedShow Answer

Which statement is correct about the input and output of carbon during glycolysis?

Correct AnswerverifiedShow Answer

Compared with other cell components (organelles,cell membrane or nucleus) ,the mitochondria would be the only one that would

Correct AnswerverifiedShow Answer

Each molecule of NADH produced in the mitochondria provides the energy for two ATP molecules.

Correct AnswerverifiedShow Answer

Which of these processes occurs in the cytosol?

Correct AnswerverifiedShow Answer

Identify 'd' as the _____

Correct AnswerverifiedShow Answer

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During glycolysis _ carbons will enter the pathway but _ carbons will leave in the form of pyruvates.

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During glycolysis _ carbons will enter the pathway but _ carbons will leave in the form of pyruvates.

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