Question 1

During the first few days of a fast, what energy source provides maximum amounts of the glucose needed to fuel the body?

Accepted Answer

A)   protein
B)   ketones
C)   glycogen
D)   triglycerides
E)   vitamins and minerals.F) B) and E)
G) None of the above

Question 2

During anabolism, what is occurring?

Accepted Answer

A)   Energy is released.
B)   Energy is required.
C)   Compounds are broken down.
D)   ADP is created.
E)   ATP is broken down.F) D) and E)
G) A) and B)

Question 3

From which B vitamin is CoA, or coenzyme A, derived, making it central to energy metabolism?

Accepted Answer

A)   folate
B)   pantothenic acid
C)   niacin
D)   thiamin
E)   vitamin B 12 F) All of the above
G) A) and D)

Question 4

In energy metabolism, glycerol can convert to -----.

Accepted Answer

A)   vitamin A
B)   fructose
C)   glucose or pyruvate.
D)   fatty acids
E)   triglyceridesF) A) and B)
G) D) and E)

Question 5

Which functions are most sensitive to alcohol?

Accepted Answer

A)   speech and vision
B)   judgment and reasoning
C)   voluntary muscle control
D)   respiration and heart function
E)   balance and coordinationF) B) and C)
G) A) and E)

Question 6

What is the primary site of alcohol metabolism?

Accepted Answer

A)   the brain
B)   the stomach
C)   the pancreas
D)   the liver
E)   the gallbladderF) A) and E)
G) C) and D)

Question 7

The metabolic breakdown of glucose to pyruvate is known as ________.

Accepted Answer

A)   hydrolysis
B)   synthesis
C)   glycolysis
D)   activation
E)   energy releaseF) None of the above
G) B) and E)

Question 8

In the Cori cycle, lactate is converted to glucose in the ____.

Accepted Answer

A)   liver
B)   muscles
C)   bloodstream
D)   pancreas
E)   gallbladderF) A) and D)
G) B) and C)

Question 9

What percentage of a person's ingested energy intake is required to store excess dietary fat as body fat?

Accepted Answer

A)   5
B)   15
C)   25
D)   35
E)   45F) C) and E)
G) A) and B)

Question 10

What is the final yield of acetyl CoA molecules from the oxidation of a 16-carbon fatty acid?

Accepted Answer

A)   4
B)   8
C)   10
D)   12
E)   16F) A) and B)
G) A) and C)

Question 11

Explain how chronic alcohol abuse can lead to malnutrition.

Accepted Answer

Heavy drinkers usually substitute alcoho...

Question 12

Which of the following is a feature of ketosis?

Accepted Answer

A)   higher blood pH
B)   acetone breath
C)   increased appetite
D)   increased glycolysis
E)   synthesis of body proteinF) A) and D)
G) A) and E)

Question 13

The amount of pure ethanol in a typical "drink" is ____.

Accepted Answer

A)   0.5 ounce
B)   1 ounce
C)   1.5 ounces
D)   2 ounces
E)   4 ouncesF) A) and D)
G) C) and D)

Question 14

Why is it easier for the body to convert dietary fat to stored fat than dietary carbohydrate to stored fat?

Accepted Answer

A)   The conversion of dietary fat to stored fat requires fewer steps.
B)   The conversion of dietary fat to stored fat allows for use of more energy.
C)   Fat enters the bloodstream more quickly.
D)   Fat is easier to digest.
E)   Fat takes less time to digest.F) A) and C)
G) C) and D)

Question 15

Which of the following is a feature of aerobic metabolism?

Accepted Answer

A)   It does not require oxygen.
B)   Lactate is created.
C)   Energy is produced more slowly than in anaerobic metabolism.
D)   Pyruvate is converted to glucose.
E)   The energy created can be sustained for only a couple of minutes.F) C) and E)
G) C) and D)

Question 16

What are the "powerhouses" of the cell?

Accepted Answer

A)   DNAs
B)   ribosomes
C)   RNAs
D)   electron transport chains
E)   mitochondriaF) B) and C)
G) A) and E)

Question 17

Which one of these statements is true of binge drinking?

Accepted Answer

A)   It is most common among 35-to-60-year-olds.
B)   It is most common among 18-to-34-year-olds.
C)   It is a pattern of drinking in which the blood alcohol level rises to no more than 0.08%.
D)   In women, it corresponds to six or more drinks within several hours.
E)   Is most common in adults over 65 years old.F) C) and D)
G) B) and D)

Question 18

Briefly describe these parts of a typical cell and their role in energy metabolism: nucleus, mitochondria, smooth endoplasmic reticulum, rough endoplasmic reticulum, and cytoplasm.

Accepted Answer

The nucleus contains the chromosomes, wh...

Question 19

What does the body do with the chemical energy of food that is not converted to the chemical energy of ATP?

Accepted Answer

A)   removes it through the kidneys
B)   radiates it as heat
C)   converts it to carbon dioxide that is then expelled through the lungs
D)   converts it to electromagnetic radiation
E)   stores it in the body's fat cellsF) C) and D)
G) A) and C)

Question 20

Which metabolic reaction occurs when a cell releases energy?

Accepted Answer

A)   ATP gains a phosphate group and becomes ADP.
B)   ADP gains a phosphate group and becomes ATP.
C)   ATP releases a phosphate group and becomes ADP.
D)   ADP releases a phosphate group and becomes ATP.
E)   ADP and ATP cycle back and forth repeatedly.F) B) and D)
G) A) and D)

Exam 7: Energy Metabolism

In the Cori cycle, lactate is converted to glucose in the ____.

Correct AnswerverifiedShow Answer

Which of the following is a feature of ketosis?

Correct AnswerverifiedShow Answer

What are the "powerhouses" of the cell?

Correct AnswerverifiedShow Answer

Briefly describe these parts of a typical cell and their role in energy metabolism: nucleus, mitochondria, smooth endoplasmic reticulum, rough endoplasmic reticulum, and cytoplasm.

Correct AnswerverifiedThe nucleus contains the chromosomes, wh...View AnswerShow Answer

From which B vitamin is CoA, or coenzyme A, derived, making it central to energy metabolism?

Correct AnswerverifiedShow Answer

During the first few days of a fast, what energy source provides maximum amounts of the glucose needed to fuel the body?

Correct AnswerverifiedShow Answer

What percentage of a person's ingested energy intake is required to store excess dietary fat as body fat?

Correct AnswerverifiedShow Answer

Why is it easier for the body to convert dietary fat to stored fat than dietary carbohydrate to stored fat?

Correct AnswerverifiedShow Answer

Explain how chronic alcohol abuse can lead to malnutrition.

Correct AnswerverifiedHeavy drinkers usually substitute alcoho...View AnswerShow Answer

Which of the following is a feature of aerobic metabolism?

Correct AnswerverifiedShow Answer

The amount of pure ethanol in a typical "drink" is ____.

Correct AnswerverifiedShow Answer

In energy metabolism, glycerol can convert to -----.

Correct AnswerverifiedShow Answer

During anabolism, what is occurring?

Correct AnswerverifiedShow Answer

What is the final yield of acetyl CoA molecules from the oxidation of a 16-carbon fatty acid?

Correct AnswerverifiedShow Answer

Which functions are most sensitive to alcohol?

Correct AnswerverifiedShow Answer

Which metabolic reaction occurs when a cell releases energy?

Correct AnswerverifiedShow Answer

Which one of these statements is true of binge drinking?

Correct AnswerverifiedShow Answer

The metabolic breakdown of glucose to pyruvate is known as ________.

Correct AnswerverifiedShow Answer

What is the primary site of alcohol metabolism?

Correct AnswerverifiedShow Answer

What does the body do with the chemical energy of food that is not converted to the chemical energy of ATP?

Correct AnswerverifiedShow Answer

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The nucleus contains the chromosomes, wh...
View Answer

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Heavy drinkers usually substitute alcoho...
View Answer

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