Question 1

As exercise intensity increases, the percentage of energy from fat metabolism decreases.

Accepted Answer

A) True 
 B)False  True

Question 2

Exercising muscle prefers to use glycogen rather than glucose because the net yield of ATP is greater.

Accepted Answer

A) True 
 B)False  True

Question 3

Arrange the energy systems anaerobic glycolysis, creatine phosphate, oxidative phosphorylation of carbohydrate, and oxidative phosphorylation of fat in order from the slowest to the fastest based on the rate of ATP production:
…..A…..B…..C…..D…..
Slowest fastest
Oxidative phosphorylation (carbohydrate)

Accepted Answer

A)  A - slowest
B)  B - slow
C)  C - fast
D)  D - fastest B

Question 4

Arrange the energy sources muscle glycogen, adipose tissue triglyceride, liver glycogen, and blood glucose in order from the least to the greatest based on the amount of energy stored in the body:
…..A…..B…..C…..D…..
Least greatest
Liver glycogen

Accepted Answer

A)  A - least
B)  B - low
C)  C - great
D)  D - greatest

Question 5

An RER of 1.0 means that 100% of the fuel used is derived from fat and 0% is derived from carbohydrate.

Accepted Answer

A) True 
 B)False

Question 6

Which of the following respiratory exchange ratio (RER)values would indicate metabolism of pure fat?

Accepted Answer

A)  0.70
B)  0.85
C)  1.00
D)  1.15

Question 7

When alcohol (ethanol)is consumed at low to moderate levels, the primary pathway is the alcohol dehydrogenase (ADH)pathway.

Accepted Answer

A) True 
 B)False

Question 8

The respiratory exchange ratio (RER)is a way of determining the body's metabolism of ____.

Accepted Answer

A)  creatine phosphate and ATP
B)  amino acids
C)  carbohydrate and fat
D)  lactate

Question 9

Arrange the energy sources muscle glycogen, adipose tissue triglyceride, liver glycogen, and blood glucose in order from the least to the greatest based on the amount of energy stored in the body:
…..A…..B…..C…..D…..
Least greatest
Blood glucose

Accepted Answer

A)  A - least
B)  B - low
C)  C - great
D)  D - greatest

Question 10

Highly aerobic muscle fibers and other tissues can use lactate as an energy source.

Accepted Answer

A) True 
 B)False

Question 11

Why is pyruvate considered a "key glycolytic compound"?

Accepted Answer

A)  It can be metabolized either anaerobically or aerobically.
B)  It has the simplest chemical structure of all the substrates used for energy.
C)  It is the entry point for aerobic metabolism of all carbohydrates, proteins, and fats.
D)  It is more stable than acetyl CoA.

Question 12

The rate-limiting enzyme for the anaerobic glycolysis energy system is ___________.

Accepted Answer

The answer of The rate-limiting enzyme for the anaerobic glycolysis...

Question 13

Match between columns
                        Premises: breakdown of triglycerides

Accepted Answer

The Answer of Alanine and Oxidized and VO₂ max and is...

Question 14

Oxidative phosphorylation is a process that begins with glucose and ends with lactate.

Accepted Answer

A) True 
 B)False

Question 15

The primary function of the electron transport chain is to ____.

Accepted Answer

A)  initiate the glycolysis reaction and produce ATP
B)  oxidize carbohydrates, fats, and proteins
C)  produce ATP in the absence of oxygen
D)  shuttle electrons from NADH and FADH to rephosphorylate ATP

Question 16

In the electron transport chain of oxidative phpsphorylation, the final electron acceptor is ____.

Accepted Answer

A)  oxygen
B)  nitrogen
C)  carbon dioxide
D)  hydrogen

Question 17

When an individual is in a fed state (the time when nutrients are being absorbed), which hormone exerts the most influence?

Accepted Answer

A)  Epinephrine (adrenaline) 
B)  Norepinephrine (noradrenaline) 
C)  Insulin
D)  Glucagon

Question 18

Which of the following is a true statement about nutrient metabolism in the starvation state?

Accepted Answer

A)  CNS depends primarily on ketones.
B)  Storage of muscle glycogen continues.
C)  Liver makes glucose from lactate.
D)  Fatty acids are stored as triglycerides..

Question 19

Free radicals (molecules with unpaired electrons)are most likely to occur during ____.

Accepted Answer

A)  the creatine phosphate energy system
B)  anaerobic glycolysis
C)  oxidative phosphorylation
D)  the ATP-PC energy system

Question 20

The energy source preferred by exercising muscle for the process of anaerobic glycolysis is ____.

Accepted Answer

A)  glucose
B)  glycogen
C)  glycerol
D)  creatine

Exam 3: Energy Systems and Exercise

As exercise intensity increases, the percentage of energy from fat metabolism decreases.

Exercising muscle prefers to use glycogen rather than glucose because the net yield of ATP is greater.

Arrange the energy sources muscle glycogen, adipose tissue triglyceride, liver glycogen, and blood glucose in order from the least to the greatest based on the amount of energy stored in the body: …..A…..B…..C…..D….. Least greatest Liver glycogen

An RER of 1.0 means that 100% of the fuel used is derived from fat and 0% is derived from carbohydrate.

Which of the following respiratory exchange ratio (RER) values would indicate metabolism of pure fat?

When alcohol (ethanol)is consumed at low to moderate levels, the primary pathway is the alcohol dehydrogenase (ADH)pathway.

The respiratory exchange ratio (RER) is a way of determining the body's metabolism of ____.

Arrange the energy sources muscle glycogen, adipose tissue triglyceride, liver glycogen, and blood glucose in order from the least to the greatest based on the amount of energy stored in the body: …..A…..B…..C…..D….. Least greatest Blood glucose

Highly aerobic muscle fibers and other tissues can use lactate as an energy source.

Why is pyruvate considered a "key glycolytic compound"?

The rate-limiting enzyme for the anaerobic glycolysis energy system is ___________.

Match the term with its definition.

Oxidative phosphorylation is a process that begins with glucose and ends with lactate.

The primary function of the electron transport chain is to ____.

In the electron transport chain of oxidative phpsphorylation, the final electron acceptor is ____.

When an individual is in a fed state (the time when nutrients are being absorbed) , which hormone exerts the most influence?

Which of the following is a true statement about nutrient metabolism in the starvation state?

Free radicals (molecules with unpaired electrons) are most likely to occur during ____.

The energy source preferred by exercising muscle for the process of anaerobic glycolysis is ____.