Question 1

Explain why a biochemist would object to the use of the term "oxidation of amino acids."

Accepted Answer

A biochemist would object to the use of the term "oxidation of amino acids" because it oversimplifies the complex biochemical processes involved. While it is true that amino acids can undergo oxidation reactions, this term does not accurately capture the diverse and intricate ways in which amino acids are metabolized in living organisms.

Amino acids can be broken down through various pathways such as transamination, deamination, and decarboxylation, which involve more than just simple oxidation reactions. Additionally, the term "oxidation" may imply a purely destructive process, when in reality, the metabolism of amino acids serves important functions in the body, such as energy production, protein synthesis, and the synthesis of important molecules like neurotransmitters and hormones.

By using the term "oxidation of amino acids," important nuances and complexities of amino acid metabolism are overlooked. A more accurate and comprehensive description of these processes would involve a broader understanding of the various metabolic pathways and biochemical transformations that amino acids undergo within living organisms.

Question 2

What is the "anabolic window?"

Accepted Answer

A)   Amount of time between the ingestion of protein and its absorption
B)   Amount of time between the absorption of protein and its metabolism
C)   A post-exercise state that favors muscle recovery and growth
D)   Any time that plasma insulin levels are low C

Question 3

Which athlete would likely use protein as an energy source during competition?

Accepted Answer

A)   Marathon runner
B)   800 meter runner
C)   Body builder
D)   Rower A

Question 4

Which of the following statements is true about ammonia?

Accepted Answer

A)   Ammonia is not toxic to the body.
B)   Ammonia is converted to urea in the kidneys.
C)   Ammonia is produced by the catabolism of amino acids.
D)   Ammonia is produced in the muscle as a result of the breakdown of ATP.

Question 5

The secondary (2nd level) structure of the protein determines its ____.

Accepted Answer

A)   function
B)   shape
C)   rigidity or stability
D)   ability to bind with other compounds

Question 6

One gram of protein yields approximately how many kcal?

Accepted Answer

A)   1
B)   4
C)   7
D)   9

Question 7

The _____ system is highly dependent on protein because of rapid cell turnover.

Accepted Answer

A)   renal
B)   immune
C)   neurological
D)   cardiovascular

Question 8

a. Dispensible amino acid
b. Indispensible amino acid
c. Complete protein
d. Incomplete protein
e. Complementary protein
f. Branched chain amino acid
-Phenylalanine

Accepted Answer

The answer of a. Dispensible amino acid
b. Indispensible amino acid
c....

Question 9

Which amino acid is found in the greatest concentration in the amino acid pool?

Accepted Answer

A)   Alanine
B)   Glutamine
C)   Leucine
D)   No one amino acid predominates.

Question 10

Match the food with its nutrient content. Use each answer only once.
a.Contains 100% protein
b.Contains protein and fat but no carbohydrate
c.Contains protein and carbohydrate but no fat
d.Contains protein, carbohydrate, and fat
-Egg whites

Accepted Answer

The answer of Match the food with its nutrient content....

Question 11

Consumption of both carbohydrates and proteins are recommended after exercise to provide the body the energy and nutrients needed for proper recovery.

Accepted Answer

A) True 
 B)False

Question 12

Match the food with its nutrient content. Use each answer only once.
a.Contains 100% protein
b.Contains protein and fat but no carbohydrate
c.Contains protein and carbohydrate but no fat
d.Contains protein, carbohydrate, and fat
-Peanut butter

Accepted Answer

The answer of Match the food with its nutrient content....

Question 13

The majority of athletes consume a sufficient amount of protein.

Accepted Answer

A) True 
 B)False

Question 14

a. Dispensible amino acid
b. Indispensible amino acid
c. Complete protein
d. Incomplete protein
e. Complementary protein
f. Branched chain amino acid
-Valine

Accepted Answer

The answer of a. Dispensible amino acid
b. Indispensible amino acid
c....

Question 15

Which of the following statements is true regarding amino acid supplementation?

Accepted Answer

A)   The supplements appear to be effective at recommended dose.
B)   Amino acid supplementation is not safe.
C)   Supplementation typically raises the concentration of amino acids above the normal level.
D)   Possible contamination is not an issue.Enter the appropriate word(s)  to complete the statement.

Question 16

On a gram for gram basis, protein has approximately the same amount of energy as ____.

Accepted Answer

A)   carbohydrate
B)   fat
C)   alcohol
D)   minerals

Question 17

The goal of combining complementary proteins is to provide the body with all of the __________ amino acids needed for growth and maintenance of tissues.

Accepted Answer

The answer of The goal of combining complementary proteins is...

Question 18

Match the food with its nutrient content. Use each answer only once.
a.Contains 100% protein
b.Contains protein and fat but no carbohydrate
c.Contains protein and carbohydrate but no fat
d.Contains protein, carbohydrate, and fat
-Dark meat turkey

Accepted Answer

The answer of Match the food with its nutrient content....

Question 19

What is the purported mechanism for glucosamine supplementation?

Accepted Answer

A)   Increased rate of skeletal muscle synthesis
B)   Attenuation of the body's inflammatory response
C)   Prevention of the breakdown of cartilage
D)   Suppression of the immune system

Question 20

What effect does insufficient energy (kcal) intake have on protein need?

Accepted Answer

A)   Increases protein need
B)   Decreases protein need
C)   No effect on protein need
D)   Spares protein need

Exam 5: Proteins

Explain why a biochemist would object to the use of the term "oxidation of amino acids."

What is the "anabolic window?"

Which athlete would likely use protein as an energy source during competition?

Which of the following statements is true about ammonia?

The secondary (2nd level) structure of the protein determines its ____.

One gram of protein yields approximately how many kcal?

The _____ system is highly dependent on protein because of rapid cell turnover.

a. Dispensible amino acid b. Indispensible amino acid c. Complete protein d. Incomplete protein e. Complementary protein f. Branched chain amino acid -Phenylalanine

Which amino acid is found in the greatest concentration in the amino acid pool?

Match the food with its nutrient content. Use each answer only once. a.Contains 100% protein b.Contains protein and fat but no carbohydrate c.Contains protein and carbohydrate but no fat d.Contains protein, carbohydrate, and fat -Egg whites

Consumption of both carbohydrates and proteins are recommended after exercise to provide the body the energy and nutrients needed for proper recovery.

Match the food with its nutrient content. Use each answer only once. a.Contains 100% protein b.Contains protein and fat but no carbohydrate c.Contains protein and carbohydrate but no fat d.Contains protein, carbohydrate, and fat -Peanut butter

The majority of athletes consume a sufficient amount of protein.

a. Dispensible amino acid b. Indispensible amino acid c. Complete protein d. Incomplete protein e. Complementary protein f. Branched chain amino acid -Valine

Which of the following statements is true regarding amino acid supplementation?

On a gram for gram basis, protein has approximately the same amount of energy as ____.

The goal of combining complementary proteins is to provide the body with all of the __________ amino acids needed for growth and maintenance of tissues.

Match the food with its nutrient content. Use each answer only once. a.Contains 100% protein b.Contains protein and fat but no carbohydrate c.Contains protein and carbohydrate but no fat d.Contains protein, carbohydrate, and fat -Dark meat turkey

What is the purported mechanism for glucosamine supplementation?

What effect does insufficient energy (kcal) intake have on protein need?