Question 1

In which of the following groups are the products all generated from the electron transport chain pathway?

Accepted Answer

A)   CO2, urea, water
B)   urea, water, energy
C)   water, energy, CO2
D)   energy, CO2, ureaE) A) and C)
F) B) and C)

Question 2

If a person consumes 100 kcalories in excess of energy needs from table sugar, approximately how many of the kcalories are stored in the body?

Accepted Answer

A)   25 kcal
B)   50 kcal
C)   75 kcal
D)   100 kcalE) All of the above
F) A) and C)

Question 3

During the first few days of a fast, what energy source provides about 90 percent of the glucose needed to fuel the body?

Accepted Answer

A)   protein
B)   ketones
C)   glycogen
D)   triglyceridesE) B) and C)
F) B) and D)

Question 4

The effects on metabolism from starvation are most similar to those from which of the following states?

Accepted Answer

A)   fasting
B)   feasting
C)   a balanced reduced energy diet
D)   physical activity energy expenditure in excess of dietary intakeE) None of the above
F) A) and B)

Question 5

The site of lipid synthesis in the cell is which of these bodies?

Accepted Answer

A)   nucleus
B)   Golgi bodies
C)   mitochondria
D)   smooth endoplasmic reticulumE) A) and B)
F) A) and C)

Question 6

Describe interactions among the energy nutrients when each is consumed in excess.

Accepted Answer

The answer of Describe interactions among the energy nutrients when...

Question 7

Which of the following reactions describes the sum of all chemical reactions that go on in living cells?

Accepted Answer

A)   digestion
B)   metabolism
C)   absorption
D)   catabolismE) A) and D)
F) C) and D)

Question 8

Your middle-aged aunt says that she always feels more "tipsy" than her same-size husband, even though their alcohol intake is the same. You respond by saying to your aunt which of the following?

Accepted Answer

A)   "Men have greater amounts of liver acetaldehyde dehydrogenase and so can oxidize the alcohol at a faster rate."
B)   "Women have less stomach alcohol dehydrogenase enzyme and consequently absorb more of the alcohol into the bloodstream."
C)   "Men have greater amounts of alcohol dehydrogenase in the brain, resulting in reduced exposure of brain neurons to alcohol."
D)   "Women have less liver alcohol dehydrogenase and acetaldehyde dehydrogenase and so more alcohol is released into the systemic circulation."E) B) and C)
F) A) and C)

Question 9

The health benefits of moderate alcohol intake occur in people from which of the following ages?

Accepted Answer

A)   21 years
B)   35 years
C)   55 years
D)   65 yearsE) A) and D)
F) C) and D)

Question 10

Your roommate Demetrius is participating in a weightlifting course and complains of a burning pain during workouts. You explain to Demetrius that this is due to his muscles converting excess pyruvate to which of the following compounds?

Accepted Answer

A)   lactate
B)   glycerol
C)   acetyl-coA
D)   amino acidsE) None of the above
F) B) and D)

Question 11

What minimum concentration of blood alcohol leads to impaired judgment and increased heart rate?

Accepted Answer

A)   0.01 percent
B)   0.05 percent
C)   0.10 percent
D)   0.35 percentE) A) and C)
F) B) and C)

Question 12

When protein consumption is in excess of body needs and energy needs are met, what is the fate of the energy in the excess amino acid molecules?

Accepted Answer

A)   stored as fat only
B)   stored as glycogen only
C)   stored as amino acids only
D)   stored as glycogen and fatE) All of the above
F) B) and D)

Question 13

When energy-yielding nutrients are consumed in excess, which one(s)  can lead to storage of fat?

Accepted Answer

A)   fat only
B)   carbohydrate only
C)   fat and carbohydrate only
D)   fat, carbohydrate, and proteinE) A) and B)
F) A) and C)

Question 14

Which of the following symptoms is most likely to be experienced by an individual who has developed ketosis?

Accepted Answer

A)   lowering of blood pH
B)   an increased appetite
C)   a vinegar-like odour on the breath
D)   weight gainE) A) and C)
F) All of the above

Question 15

The chemical structure of ethanol consists of which of the following combinations?

Accepted Answer

A)   2 carbons and 1 hydroxyl group
B)   3 carbons and 2 carbonyl groups
C)   4 carbons and 1 keto acid
D)   6 carbons and 2 double bondsE) None of the above
F) A) and D)

Question 16

In a triglyceride that contains 54 carbon atoms, how many can become part of glucose?

Accepted Answer

A)   3
B)   9
C)   54
D)   108E) All of the above
F) B) and C)

Question 17

In which of the following groups can all of the dietary components be used to make body proteins?

Accepted Answer

A)   glucose, glycerol, fatty acids
B)   glycerol, fatty acids, amino acids
C)   fatty acids, amino acids, glucose
D)   amino acids, glucose, glycerolE) All of the above
F) B) and C)

Question 18

In the average healthy person, about how much time is required by the liver to process the alcohol in a typical drink?

Accepted Answer

A)   15 minutes
B)   30 minutes
C)   1 hour
D)   2 hoursE) A) and B)
F) B) and D)

Question 19

How does the electron transport chain function in the synthesis of ATP?

Accepted Answer

The answer of How does the electron transport chain function...

Question 20

At what point is oxygen used in the electron transport chain?

Accepted Answer

A)   at the end
B)   at every step
C)   at the beginning
D)   when ATP is synthesizedE) B) and D)
F) B) and C)

Exam 7: Metabolism: Transformations and Interactions

Which of the following symptoms is most likely to be experienced by an individual who has developed ketosis?

Correct AnswerverifiedShow Answer

In a triglyceride that contains 54 carbon atoms, how many can become part of glucose?

Correct AnswerverifiedShow Answer

The chemical structure of ethanol consists of which of the following combinations?

Correct AnswerverifiedShow Answer

When protein consumption is in excess of body needs and energy needs are met, what is the fate of the energy in the excess amino acid molecules?

Correct AnswerverifiedShow Answer

During the first few days of a fast, what energy source provides about 90 percent of the glucose needed to fuel the body?

Correct AnswerverifiedShow Answer

At what point is oxygen used in the electron transport chain?

Correct AnswerverifiedShow Answer

In the average healthy person, about how much time is required by the liver to process the alcohol in a typical drink?

Correct AnswerverifiedShow Answer

In which of the following groups can all of the dietary components be used to make body proteins?

Correct AnswerverifiedShow Answer

Your middle-aged aunt says that she always feels more "tipsy" than her same-size husband, even though their alcohol intake is the same. You respond by saying to your aunt which of the following?

Correct AnswerverifiedShow Answer

When energy-yielding nutrients are consumed in excess, which one(s) can lead to storage of fat?

Correct AnswerverifiedShow Answer

In which of the following groups are the products all generated from the electron transport chain pathway?

Correct AnswerverifiedShow Answer

If a person consumes 100 kcalories in excess of energy needs from table sugar, approximately how many of the kcalories are stored in the body?

Correct AnswerverifiedShow Answer

The health benefits of moderate alcohol intake occur in people from which of the following ages?

Correct AnswerverifiedShow Answer

The effects on metabolism from starvation are most similar to those from which of the following states?

Correct AnswerverifiedShow Answer

The site of lipid synthesis in the cell is which of these bodies?

Correct AnswerverifiedShow Answer

Describe interactions among the energy nutrients when each is consumed in excess.

Correct AnswerverifiedShow Answer

Your roommate Demetrius is participating in a weightlifting course and complains of a burning pain during workouts. You explain to Demetrius that this is due to his muscles converting excess pyruvate to which of the following compounds?

Correct AnswerverifiedShow Answer

How does the electron transport chain function in the synthesis of ATP?

Correct AnswerverifiedShow Answer

Which of the following reactions describes the sum of all chemical reactions that go on in living cells?

Correct AnswerverifiedShow Answer

What minimum concentration of blood alcohol leads to impaired judgment and increased heart rate?

Correct AnswerverifiedShow Answer

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