Amino acids

Question 1

Basic a.a.:
His lys (lies) are basic.

Answer 1

Arginine, histidine, lysine.

Question 2

most basic a.a.

Answer 2

Arginine is most basic.

Question 3

Which basic aa has no charge at body pH?

Answer 3

Histidine

Question 4

required during periods of growth.

Answer 4

Arginine and histidine are re

Question 5

essential a.a.

PVT TIM HaLL

Answer 5

Phenylalanine, 
Valine, 
Threonine, 
Tryptophan, 
Isoleucine, 
Methionine, 
Histidine, 
Leucine, 
Lysine

Question 6

A starving pt is able to convert certain non-ketogenic amino acids to glucose, via gluconeogenesis. Name these 3 essential amino acids.

Answer 6

Methionine, histidine, and valine (I met his valentine, she is so sweet [glucogenic])

Question 7

Name the 4 essential amino acids that are both glucogenic and ketogenic.

Answer 7

Isoleucine, phenylalanine, threonine, and tyrosine

Question 8

Name the 4 essential amino acids that are both glucogenic and ketogenic.

Answer 8

Leucine and lysine, the onLy pureLy ketogenic amino acids

Question 9

2 aa. which are both negatively charged at the body’s pH

Answer 9

aspartae and glutamate

Question 10

A 13 yo boy grew 15 cm this year. Which usually nonessential amino acids are now more essential for him?

Answer 10

Arginine and histidine, which become more essential during periods of rapid growth

Question 11

Which regions of a transmembrane protein would you expect to be rich in aspartate, arginine, and other polar amino acids?

Answer 11

Intracellular and extracellular domains; the lipid bilayer is hydrophobic, so transmembrane domains are rich in nonpolar amino acids