Question 1

Consider the diagram of the mitochondrion shown below.During electron transport,protons (H+) are pumped into what area of the mitochondrion? +) are pumped into what area of the mitochondrion?   A) 2 B) 3 C) 4 D) 5" class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

A)  2
B)  3
C)  4
D)  5E) C) and D)
F) A) and C)

Question 2

If a glucose tolerance test shows an abnormally high level of glucose in the blood after several hours,the person is possibly _____ .

Accepted Answer

A)  hypoglycemic
B)  diabetic
C)  anemic
D)  overweightE) None of the above
F) A) and B)

Question 3

Glycogen is a polymer of glucose that is a store of energy,and is found in the liver.

Accepted Answer

A) True 
 B)False

Question 4

Contrast complete glucose oxidation,lactate fermentation,and alcoholic fermentation.

Accepted Answer

A)  Glucose oxidation produces approximately the same amount of ATP as lactate and alcoholic fermentation together.
B)  Lactate fermentation is the most important process of the three for the production of energy in muscles that are performing extended periods of work.
C)  Lactate fermentation produces less ATP than does glucose oxidation,but approximately the same amount of ATP as alcoholic fermentation.
D)  The complete oxidation of glucose produces fructose; that of lactate fermentation produces lactic acid; and that of alcoholic fermentation produces ethanol.E) None of the above
F) A) and B)

Question 5

Insulin decreases the rate of synthesis of glycogen and fatty acids.

Accepted Answer

A) True 
 B)False

Question 6

As a molecule of glucose passes through the glycolysis pathway,three molecules of pyruvate are formed.

Accepted Answer

A) True 
 B)False

Question 7

All pyruvate has a similar fate,in that it eventually produces _____ .

Accepted Answer

A)  CO2
B)  acetyl CoA
C)  NAD+
D)  FADE) A) and B)
F) C) and D)

Question 8

Each turn of the citric acid cycle produces ____ NADH coenzyme(s) .

Accepted Answer

A)  0
B)  1
C)  2
D)  3E) A) and C)
F) All of the above D

Question 9

Which of the following is not an energy source used in metabolism?

Accepted Answer

A)  UTP
B)  ATP
C)  GTP
D)  UTCE) None of the above
F) A) and B)

Question 10

In the diagram of the citric acid cycle shown,what do the two points indicated by an asterisk have in common? 2 is produced. B) NAD+ is reduced. C) ATP is produced. D) All will occur." class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

A)  CO2 is produced.
B)  NAD+ is reduced.
C)  ATP is produced.
D)  All will occur.E) C) and D)
F) All of the above D

Question 11

The net yield of ATP molecules from the complete catabolism of one molecule of glucose is _____ .

Accepted Answer

A)  18
B)  24
C)  32
D)  42E) A) and B)
F) A) and C)

Question 12

Which of the following hormones acts to raise the blood glucose level?

Accepted Answer

A)  glucagon
B)  insulin
C)  epinephrine
D)  More than one response is correct.E) None of the above
F) B) and D)

Question 13

Synthesis of glucose from pyruvate during the Cori cycle occurs primarily in the _____ .

Accepted Answer

A)  muscles
B)  liver
C)  bloodstream
D)  heart tissueE) A) and C)
F) B) and D)

Question 14

Epinephrine is a peptide hormone.

Accepted Answer

A) True 
 B)False

Question 15

Glycolysis occurs within the _____ .

Accepted Answer

A)  mitochondria
B)  nucleus
C)  vacuoles
D)  cytoplasmE) None of the above
F) C) and D)

Question 16

Glycolysis

Accepted Answer

A)  costs two ATP molecules at the beginning of the process.
B)  produces four ATP molecules.
C)  has a resultant molecule that enters the next step of the process,the citric acid cycle.
D)  More than one response is correct.E) None of the above
F) A) and D) D

Question 17

In the electron transport chain,FADH2 delivers hydrogen ions and electrons to which of the following?

Accepted Answer

A)  coenzyme Q
B)  NAD+
C)  flavoprotein
D)  cytochrome bE) B) and C)
F) A) and C)

Question 18

Lactate,produced in the muscles,is sent to the liver for processing.This is one step of ____.

Accepted Answer

A)  the citric acid cycle
B)  the Cori cycle
C)  glycolysis
D)  oxidative phosphorylationE) None of the above
F) C) and D)

Question 19

The reaction of NAD+ to produce NADH is an example of what type of reaction?

Accepted Answer

A)  oxidation
B)  reduction
C)  hydrolysis
D)  hydrationE) A) and B)
F) A) and C)

Question 20

A blood sugar level that is lower than normal is referred to as _____ .

Accepted Answer

A)  hypoglycemia
B)  hyperglycemia
C)  glucosuria
D)  diabetes mellitusE) A) and B)
F) None of the above

Exam 23: Carbohydrate Metabolism

Consider the diagram of the mitochondrion shown below.During electron transport,protons (H+) are pumped into what area of the mitochondrion?

Correct AnswerverifiedShow Answer

If a glucose tolerance test shows an abnormally high level of glucose in the blood after several hours,the person is possibly _____ .

Correct AnswerverifiedShow Answer

Glycogen is a polymer of glucose that is a store of energy,and is found in the liver.

Correct AnswerverifiedShow Answer

Contrast complete glucose oxidation,lactate fermentation,and alcoholic fermentation.

Correct AnswerverifiedShow Answer

Insulin decreases the rate of synthesis of glycogen and fatty acids.

Correct AnswerverifiedShow Answer

As a molecule of glucose passes through the glycolysis pathway,three molecules of pyruvate are formed.

Correct AnswerverifiedShow Answer

All pyruvate has a similar fate,in that it eventually produces _____ .

Correct AnswerverifiedShow Answer

Each turn of the citric acid cycle produces ____ NADH coenzyme(s) .

Correct AnswerverifiedD

Which of the following is not an energy source used in metabolism?

Correct AnswerverifiedShow Answer

In the diagram of the citric acid cycle shown,what do the two points indicated by an asterisk have in common?

Correct AnswerverifiedD

The net yield of ATP molecules from the complete catabolism of one molecule of glucose is _____ .

Correct AnswerverifiedShow Answer

Which of the following hormones acts to raise the blood glucose level?

Correct AnswerverifiedShow Answer

Synthesis of glucose from pyruvate during the Cori cycle occurs primarily in the _____ .

Correct AnswerverifiedShow Answer

Epinephrine is a peptide hormone.

Correct AnswerverifiedShow Answer

Glycolysis occurs within the _____ .

Correct AnswerverifiedShow Answer

Glycolysis

Correct AnswerverifiedD

In the electron transport chain,FADH2 delivers hydrogen ions and electrons to which of the following?

Correct AnswerverifiedShow Answer

Lactate,produced in the muscles,is sent to the liver for processing.This is one step of ____.

Correct AnswerverifiedShow Answer

The reaction of NAD+ to produce NADH is an example of what type of reaction?

Correct AnswerverifiedShow Answer

A blood sugar level that is lower than normal is referred to as _____ .

Correct AnswerverifiedShow Answer

Consider the diagram of the mitochondrion shown below.During electron transport,protons (H⁺) are pumped into what area of the mitochondrion?

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D

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D

In the electron transport chain,FADH₂ delivers hydrogen ions and electrons to which of the following?

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The reaction of NAD⁺ to produce NADH is an example of what type of reaction?

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