Quiz L13

Question 1

In normal healthy individuals body protein can be excreted as…

Answer 1

Hair

Question 2

What % of protein synthesis accounts for basal energy expenditure?

Answer 2

20%

Question 3

What is protein synthesis?

Answer 3

Building up of amino acids into a polypeptide chain

Question 4

What is muscle protein synthesis?

Answer 4

Building up of amino acids into functioning muscle

Question 5

What is protein breakdown?

Answer 5

Degradation of polypeptide chains

Question 6

Which amino acid is always first in a polypeptide chain?

Answer 6

Methionine

Question 7

Which of the following is not a step in protein synthesis?

a. Deamination
b. Translation
c. Transcription
d. Post-translational modifications

Answer 7

Deamination

Question 8

Which of the following ribosomal subunits are involved in translation initiation?

a. 40S and 70S
b. 30S and 60S
c. 40S and 60S
d. 40S and 80S

Answer 8

40s and 60s

Question 9

What is the net positive muscle protein balance?

Answer 9

Larger muscle protein synthesis than muscle protein breakdown

Question 10

Which proteiolysis system is activated by calcium?

Answer 10

Calpain

Question 11

Which protein breakdown system is predominantly involved in apoptosis?

Answer 11

Caspases