Question 1

GLP-1 triggers which of the following in the brain?

Accepted Answer

A)   decreased satiety
B)   decreased food intake
C)   decreased body weight
D)   All of the answers are correct.
E)   decreased food intake and decreased body weightF) A) and E)
G) B) and E)

Question 2

Maintenance of a constant blood-glucose level is called

Accepted Answer

A)   glucose tolerance.
B)   glucose adjustment.
C)   glucose homeostasis.
D)   cholecystokinin.
E)   None of the answers is correct.F) D) and E)
G) None of the above

Question 3

What is the cause of type 1 diabetes?

Accepted Answer

This form of diabetes appears ...

Question 4

What is the advantage of converting pyruvate to lactate in skeletal muscle?

Accepted Answer

One advantage is that NAD⁺ is regenerated...

Question 5

What is the primary source of energy used by the muscle during starvation?

Accepted Answer

A)   glucose
B)   lactate
C)   fatty acids
D)   ketone bodies
E)   branched-chain amino acidsF) C) and D)
G) A) and E)

Question 6

Which organ is considered to be the metabolic "hub" of the body?

Accepted Answer

A)   brain
B)   small intestine
C)   liver
D)   pancreas
E)   adipose tissueF) A) and C)
G) B) and E)

Question 7

How do SOCS (suppressors of cytokine signaling)proteins inhibit receptor signaling? Give one example.

Accepted Answer

SOCS proteins bind to phosphorylated tyr...

Question 8

What are the plasma concentrations of glucose in the normal fasting and starvation states?

Accepted Answer

Typical fasting glucose level ...

Question 9

What are some of the primary metabolic fates of acetyl CoA in animals?

Accepted Answer

Acetyl CoA can enter the citric acid cyc...

Question 10

The microsomal ethanol-oxidizing system (MEOS)consumes oxygen and ______________,which leads to oxidative stress partly due to the inability to regenerate glutathione.

Accepted Answer

The answer of The microsomal ethanol-oxidizing system (MEOS)consumes oxygen and...

Question 11

Which of the following metabolic conversions provides the maximum rate of ATP production (mmol sec-1) for muscle contraction?

Accepted Answer

A)   muscle glycogen to CO2
B)   muscle glycogen to lactate
C)   creatine phosphate and ADP to ATP and creatine
D)   fatty acid to CO2
E)   liver glycogen to CO2F) C) and D)
G) A) and B) C

Question 12

The primary function of aerobic glycolysis is to

Accepted Answer

A)   degrade glucose to provide ATP.
B)   provide carbon skeletons for biosynthesis.
C)   provide NADH for lactate reduction.
D)   provide NADPH for biosynthetic reactions
E)   None of the answers is correct.F) D) and E)
G) C) and E)

Question 13

What metabolic changes occur during the early fasting state?

Accepted Answer

In the initial hours after a meal,the bl...

Question 14

The "fed state" leads to the release of the hormone ____________________.

Accepted Answer

The answer of The "fed state" leads to the release...

Question 15

What fuel is used exclusively by muscles following a day of starvation?

Accepted Answer

A)   glycogen
B)   fatty acids
C)   alanine
D)   glucose
E)    β\betaβ -hydroxybutyrate F) B) and E)
G) D) and E) B

Question 16

Excess alcohol consumption can lead to Wernicke-Korsaff syndrome due to the lack of the vitamin thiamine.Which of the following metabolic conversions CANNOT occur in the absence of thiamine?

Accepted Answer

A)   pyruvate + CO2  →\rarr→  oxaloacetate
B)   pyruvate  →\rarr→  acetyl-CoA + CO2
C)    α\alphaα -ketoglutarate  →\rarr→ succinyl-CoA + CO2
D)   phosphoenolpyruvate + CO2  →\rarr→  oxaloacetate
E)   B and C are correct. F) A) and E)
G) C) and D)

Question 17

What is the key regulatory enzyme in glycolysis?

Accepted Answer

A)   phosphofructokinase
B)   glucokinase
C)   hexokinase
D)   triose phosphate isomerase
E)   None of the answers is correct.F) B) and E)
G) B) and C)

Question 18

What is the major fuel for resting muscle,and what it the major fuel for muscle under strenuous work conditions?

Accepted Answer

Fatty acids are the major fuel...

Question 19

What hormone,released by adipose tissue,generates a sense of satiation and inhibits the appetite?

Accepted Answer

A)   leptin
B)   cholecystokinin
C)   neuropeptide Y
D)   insulin
E)   None of the answers is correct.F) B) and C)
G) A) and E) A

Question 20

When levels of ketone bodies are high,the _________________ can no longer maintain acid-base balance in the blood.

Accepted Answer

The answer of When levels of ketone bodies are high,the...

Exam 27: The Integration of Metabolism

GLP-1 triggers which of the following in the brain?

Correct AnswerverifiedShow Answer

Maintenance of a constant blood-glucose level is called

Correct AnswerverifiedShow Answer

What is the cause of type 1 diabetes?

Correct AnswerverifiedThis form of diabetes appears ...View AnswerShow Answer

What is the advantage of converting pyruvate to lactate in skeletal muscle?

Correct AnswerverifiedOne advantage is that NAD+ is regenerated...View AnswerShow Answer

What is the primary source of energy used by the muscle during starvation?

Correct AnswerverifiedShow Answer

Which organ is considered to be the metabolic "hub" of the body?

Correct AnswerverifiedShow Answer

How do SOCS (suppressors of cytokine signaling)proteins inhibit receptor signaling? Give one example.

Correct AnswerverifiedSOCS proteins bind to phosphorylated tyr...View AnswerShow Answer

What are the plasma concentrations of glucose in the normal fasting and starvation states?

Correct AnswerverifiedTypical fasting glucose level ...View AnswerShow Answer

What are some of the primary metabolic fates of acetyl CoA in animals?

Correct AnswerverifiedAcetyl CoA can enter the citric acid cyc...View AnswerShow Answer

The microsomal ethanol-oxidizing system (MEOS)consumes oxygen and ______________,which leads to oxidative stress partly due to the inability to regenerate glutathione.

Correct AnswerverifiedShow Answer

Which of the following metabolic conversions provides the maximum rate of ATP production (mmol sec-1) for muscle contraction?

Correct AnswerverifiedC

The primary function of aerobic glycolysis is to

Correct AnswerverifiedShow Answer

What metabolic changes occur during the early fasting state?

Correct AnswerverifiedIn the initial hours after a meal,the bl...View AnswerShow Answer

The "fed state" leads to the release of the hormone ____________________.

Correct AnswerverifiedShow Answer

What fuel is used exclusively by muscles following a day of starvation?

Correct AnswerverifiedB

Excess alcohol consumption can lead to Wernicke-Korsaff syndrome due to the lack of the vitamin thiamine.Which of the following metabolic conversions CANNOT occur in the absence of thiamine?

Correct AnswerverifiedShow Answer

What is the key regulatory enzyme in glycolysis?

Correct AnswerverifiedShow Answer

What is the major fuel for resting muscle,and what it the major fuel for muscle under strenuous work conditions?

Correct AnswerverifiedFatty acids are the major fuel...View AnswerShow Answer

What hormone,released by adipose tissue,generates a sense of satiation and inhibits the appetite?

Correct AnswerverifiedA

When levels of ketone bodies are high,the _________________ can no longer maintain acid-base balance in the blood.

Correct AnswerverifiedShow Answer

Correct Answer
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This form of diabetes appears ...
View Answer

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One advantage is that NAD⁺ is regenerated...
View Answer

Correct Answer
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Correct Answer
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Correct Answer
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SOCS proteins bind to phosphorylated tyr...
View Answer

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Typical fasting glucose level ...
View Answer

Correct Answer
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Acetyl CoA can enter the citric acid cyc...
View Answer

Correct Answer
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Which of the following metabolic conversions provides the maximum rate of ATP production (mmol sec^-¹) for muscle contraction?

Correct Answer
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C

Correct Answer
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Correct Answer
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In the initial hours after a meal,the bl...
View Answer

Correct Answer
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Correct Answer
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B

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Correct Answer
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Fatty acids are the major fuel...
View Answer

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A

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