Question 1

Under aerobic conditions in humans,what is pyruvate converted to?

Accepted Answer

A)  ethanol
B)  lactate
C)  CO2
D)  none of theseE) B) and C)
F) None of the above

Question 2

Consider the diagram below.That is the step that is labeled 1 called?

Accepted Answer

A)  fermentation
B)  gluconeogenesis
C)  glycolysis
D)  glycogenolysisE) C) and D)
F) B) and D)

Question 3

The majority of ATP produced during the catabolism of glucose is formed during _____ .

Accepted Answer

A)  oxidative phosphorylation
B)  glycolysis
C)  the citric acid cycle
D)  the formation of acetyl CoAE) A) and C)
F) C) and D)

Question 4

Under anaerobic conditions in humans,what is pyruvate converted to?

Accepted Answer

A)  ethanol
B)  lactate
C)  CO2
D)  none of theseE) B) and D)
F) B) and C)

Question 5

The only way to prevent lactate accumulation in adults is to limit exercise.

Accepted Answer

A) True 
 B)False

Question 6

The process where ADP is converted to ATP while coupled to the electron transport chain is

Accepted Answer

A)  citric acid cycle.
B)  alcohol fermentation.
C)  oxidative phosphorylation.
D)  the Cori cycle.E) B) and C)
F) C) and D)

Question 7

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

Accepted Answer

A)  glucagon
B)  insulin
C)  epinephrine
D)  More than one response is correct.E) A) and B)
F) A) and C)

Question 8

The main source of energy for the brain is _____ .

Accepted Answer

A)  glucose
B)  fatty acids
C)  glycogen
D)  glycerolE) A) and D)
F) A) and C)

Question 9

Both glucagon and insulin are produced by the pancreas.

Accepted Answer

A) True 
 B)False

Question 10

During gluconeogenesis,pyruvate is formed from glycerol,certain amino acids and _____ .

Accepted Answer

A)  acetyl CoA
B)  glucose
C)  lactate
D)  glycogenE) None of the above
F) B) and C)

Question 11

Which of the following reactions represents a step in the metabolism of pyruvate that occurs under aerobic conditions?

Accepted Answer

A)   
B)   
C)   
D)   E) A) and D)
F) None of the above

Question 12

Glucose is the only sugar used by the human body.

Accepted Answer

A) True 
 B)False

Question 13

During the first step of the citric acid cycle,citrate is produced from an acetyl group and ____?

Accepted Answer

A)  oxaloacetate
B)  malate
C)  pyruvate
D)  fumerateE) A) and C)
F) A) and D)

Question 14

The electron transport chain exists for the purpose of removing excess electrons from the cell.

Accepted Answer

A) True 
 B)False

Question 15

The function of insulin is that it causes the cells to remove glucose from the circulatory system.

Accepted Answer

A) True 
 B)False

Question 16

Glucagon can counteract the effect of insulin.

Accepted Answer

A) True 
 B)False

Question 17

In the body,the fermentation process is limited to production of lactate from pyruvate in the muscles.However,there are other types of fermentation.

Accepted Answer

A) True 
 B)False

Question 18

What ions present in the cytochrome aid in passing electrons along the electron transport chain?

Accepted Answer

A)  Fe2+ and Fe3+
B)  Cu+ and Cu2+
C)  Zn+ and Zn2+
D)  Mg2+ and Na+E) All of the above
F) A) and B)

Question 19

Glycogen is stored primarily in the liver and the _____ .

Accepted Answer

A)  heart
B)  pancreas
C)  muscles
D)  fat depositsE) B) and D)
F) B) and C)

Question 20

Insulin,glucagon and epinephrine all target the liver for control of glucose levels in the body.

Accepted Answer

A) True 
 B)False

Exam 23: Carbohydrate Metabolism

The only way to prevent lactate accumulation in adults is to limit exercise.

Correct AnswerverifiedShow Answer

During gluconeogenesis,pyruvate is formed from glycerol,certain amino acids and _____ .

Correct AnswerverifiedShow Answer

What ions present in the cytochrome aid in passing electrons along the electron transport chain?

Correct AnswerverifiedShow Answer

Both glucagon and insulin are produced by the pancreas.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Glucagon can counteract the effect of insulin.

Correct AnswerverifiedShow Answer

Glycogen is stored primarily in the liver and the _____ .

Correct AnswerverifiedShow Answer

The process where ADP is converted to ATP while coupled to the electron transport chain is

Correct AnswerverifiedShow Answer

Consider the diagram below.That is the step that is labeled 1 called?

Correct AnswerverifiedShow Answer

Insulin,glucagon and epinephrine all target the liver for control of glucose levels in the body.

Correct AnswerverifiedShow Answer

In the body,the fermentation process is limited to production of lactate from pyruvate in the muscles.However,there are other types of fermentation.

Correct AnswerverifiedShow Answer

The majority of ATP produced during the catabolism of glucose is formed during _____ .

Correct AnswerverifiedShow Answer

The main source of energy for the brain is _____ .

Correct AnswerverifiedShow Answer

During the first step of the citric acid cycle,citrate is produced from an acetyl group and ____?

Correct AnswerverifiedShow Answer

The function of insulin is that it causes the cells to remove glucose from the circulatory system.

Correct AnswerverifiedShow Answer

Under anaerobic conditions in humans,what is pyruvate converted to?

Correct AnswerverifiedShow Answer

The electron transport chain exists for the purpose of removing excess electrons from the cell.

Correct AnswerverifiedShow Answer

Which of the following reactions represents a step in the metabolism of pyruvate that occurs under aerobic conditions?

Correct AnswerverifiedShow Answer

Glucose is the only sugar used by the human body.

Correct AnswerverifiedShow Answer

Under aerobic conditions in humans,what is pyruvate converted to?

Correct AnswerverifiedShow Answer

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