Question 1

Match the regulatory hormones with their primary functions in integrative metabolism.
-glucagon

Accepted Answer

A)  stimulates liver glycogenolysis and gluconeogenesis
B)  stimulates lipolysis and increases triacylglycerol uptake from VLDL
C)  stimulates gluconeogenesis and glycogenolysis in the liver
D)  stimulates removal of glucose from the blood and anabolic reactions
E)  produced from phenylalanine and tyrosine; functions as a neurotransmitter and a stress hormone

Question 2

One of the problems associated with the use of dietary supplements used to enhance athletic performance is ____.

Accepted Answer

A)  they are difficult to obtain
B)  there is little scientific evidence to prove that they are effective
C)  there are many supplements that are considered to be performance enhancing
D)  advertising for these products is often based on research that the layperson has difficulty understanding

Question 3

An individual with a deficiency of glycerol-3-phosphate would have difficulty synthesizing ____.

Accepted Answer

A)  fatty acids
B)  triacylglycerols
C)  acetyl-CoA
D)  glucose

Question 4

What amino acid plays an important role in controlling toxicity from ammonia released during amino acid catabolism by the glutamate dehydrogenase reaction?

Accepted Answer

A)  glutamine
B)  glycine
C)  serine
D)  valine

Question 5

Match the regulatory hormones with their primary functions in integrative metabolism.
-insulin

Accepted Answer

A)  stimulates liver glycogenolysis and gluconeogenesis
B)  stimulates lipolysis and increases triacylglycerol uptake from VLDL
C)  stimulates gluconeogenesis and glycogenolysis in the liver
D)  stimulates removal of glucose from the blood and anabolic reactions
E)  produced from phenylalanine and tyrosine; functions as a neurotransmitter and a stress hormone

Question 6

The postabsorptive state evolves into the fasting state after 36-72 hours of no food intake.

Accepted Answer

A) True 
 B)False

Question 7

The most accepted dietary compound used to enhance performance is/are ____.

Accepted Answer

A)  caffeine
B)  creatine
C)  buffering agents
D)  carbohydrate supplements

Question 8

The majority of energy for ATP production is provided by dietary ____.

Accepted Answer

A)  protein
B)  protein and lipid
C)  carbohydrate and protein
D)  carbohydrate and lipid

Question 9

Match the metabolic activity to the correct organ.
-red blood cell

Accepted Answer

A)  relies solely on glucose for energy
B)  fatty acids/glucose are the major fuel
C)  stores large amounts of triacylglycerols
D)  uses little glucose-6-phosphate and stores much glycogen
E)  can adapt to using ketone bodies during prolonged energy deficit

Question 10

How long does it take for the postabsorptive state to evolve into the fasting state?

Accepted Answer

A)  12-18 hours
B)  ​18-48 hours
C)  24-36 hours
D)  36-72 hours

Question 11

Which hormone has the primary responsibility for directing energy metabolism in the fed state?

Accepted Answer

A)  growth hormone
B)  cortisol
C)  glucagon
D)  insulin

Question 12

All tissues prefer glucose first,and then fatty acids,to meet their energy needs.

Accepted Answer

A) True 
 B)False

Question 13

A protein-sparing shift in metabolism from gluconeogenesis to lipolysis occurs during the ____.

Accepted Answer

A)  early fasting state
B)  fasting state
C)  starvation state
D)  fed state

Question 14

In which organ does urea synthesis occur?

Accepted Answer

A)  kidney
B)  spleen
C)  liver
D)  pancreas

Question 15

Muscle and adipose tissue must obtain glycerol-3-phosphate through ____.

Accepted Answer

A)  gluconeogenesis
B)  glycolysis
C)  glycogenolysis
D)  glycogenesis

Question 16

When glucose exceeds the glycogen storage capacity of the liver,the excess glucose can be converted to ____.

Accepted Answer

A)  acetyl-CoA
B)  fructose
C)  glucose-6-phosphate dehydrogenase
D)  fatty acids and triacylglycerols

Question 17

An increase in glycolysis is accompanied by an increase in ____.

Accepted Answer

A)  pyruvate dehydrogenase
B)  isocitrate dehydrogenase
C)  pyruvate kinase
D)  fructose-1,6-bisphosphatase

Question 18

After several weeks of starvation,what proportion of the energy needs of the brain is supplied by β-hydroxybutyrate and acetoacetate?

Accepted Answer

A)  one-fourth
B)  one-third
C)  one-half
D)  two-thirds

Question 19

The precursors for insulin's stimulation of fatty acid synthesis are excess ____.

Accepted Answer

A)  sucrose and maltose
B)  glucose and sucrose
C)  fructose and sucrose
D)  glucose and fructose

Question 20

Most nutrients absorbed by the small intestine first pass through the liver.

Accepted Answer

A) True 
 B)False

Exam 7: Integration and Regulation of Metabolism and the Impact of Exercise

Match the regulatory hormones with their primary functions in integrative metabolism. -glucagon

Correct AnswerverifiedShow Answer

Most nutrients absorbed by the small intestine first pass through the liver.

Correct AnswerverifiedShow Answer

In which organ does urea synthesis occur?

Correct AnswerverifiedShow Answer

The precursors for insulin's stimulation of fatty acid synthesis are excess ____.

Correct AnswerverifiedShow Answer

One of the problems associated with the use of dietary supplements used to enhance athletic performance is ____.

Correct AnswerverifiedShow Answer

Muscle and adipose tissue must obtain glycerol-3-phosphate through ____.

Correct AnswerverifiedShow Answer

All tissues prefer glucose first,and then fatty acids,to meet their energy needs.

Correct AnswerverifiedShow Answer

Match the regulatory hormones with their primary functions in integrative metabolism. -insulin

Correct AnswerverifiedShow Answer

The majority of energy for ATP production is provided by dietary ____.

Correct AnswerverifiedShow Answer

A protein-sparing shift in metabolism from gluconeogenesis to lipolysis occurs during the ____.

Correct AnswerverifiedShow Answer

What amino acid plays an important role in controlling toxicity from ammonia released during amino acid catabolism by the glutamate dehydrogenase reaction?

Correct AnswerverifiedShow Answer

Match the metabolic activity to the correct organ. -red blood cell

Correct AnswerverifiedShow Answer

Which hormone has the primary responsibility for directing energy metabolism in the fed state?

Correct AnswerverifiedShow Answer

When glucose exceeds the glycogen storage capacity of the liver,the excess glucose can be converted to ____.

Correct AnswerverifiedShow Answer

An increase in glycolysis is accompanied by an increase in ____.

Correct AnswerverifiedShow Answer

An individual with a deficiency of glycerol-3-phosphate would have difficulty synthesizing ____.

Correct AnswerverifiedShow Answer

How long does it take for the postabsorptive state to evolve into the fasting state?

Correct AnswerverifiedShow Answer

The postabsorptive state evolves into the fasting state after 36-72 hours of no food intake.

Correct AnswerverifiedShow Answer

The most accepted dietary compound used to enhance performance is/are ____.

Correct AnswerverifiedShow Answer

After several weeks of starvation,what proportion of the energy needs of the brain is supplied by β-hydroxybutyrate and acetoacetate?

Correct AnswerverifiedShow Answer

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