Overview of Protein Biochemistry

Question 1

describe Conditionally essential amino acids

Answer 1

These amino acids can be made by the body, but the capacity for their synthesis is limited, and in states of high consumption like critical illness, deficiency may develop.

Question 2

which modified amino acids are structural components of collagen, and Vitamin C is needed for their synthesis.

Answer 2

Hydroxy-Proline and Hydroxy Lysine

Question 3

Prothrombin uses _______ to target membranes

Answer 3

Gamma carboxyglutamate

Question 4

_______ targets proteins for degradation in proteasomes

Answer 4

Ubquination

Question 5

For an amino acid to be used as a precursor for gluconeogenesis, the ______ must be removed.

Answer 5

NH2 group

Question 6

For an amino acid to be made from a carbon skeleton, ____ must be added.

Answer 6

NH2 group

Question 7

In the first step of the urea cycle, the ammonia that was produced from transamination reactions is converted to carbamoyl phosphate which is catalyzed by ______which is the key regulated step in protein catabolism

Answer 7

carbamoyl phosphate synthase 1

Question 8

_______ can form disulfide bridges that change protein conformation.

Answer 8

Cysteine

Question 9

S-adenosylmethionine (SAM) is a precursor for ______ which is important in vascular disease, wound healing, and is involved in B12 and folate metabolism.

Answer 9

homocysteine