Classify Amino Acids: Name, 3 letter abv, polar / nonpolar, if polar what charge

Question 1

A

Answer 1

Alanine, Ala

Nonpolar

Question 2

R

Answer 2

Arginine, Arg

Polar, positively charged at neutral pH

Question 3

N

Answer 3

Asparagine, Asn

Polar, uncharged at neutral pH (has N instead of O for acyl group in aspartic acid)

Question 4

D

Answer 4

Aspartic acid / Aspartate, Asp

Polar, charged negatively as neutral pH (aspartate)

Question 5

C

Answer 5

Cysteine, Cys

Polar, uncharged at neutral pH

Question 6

Q

Answer 6

Glutamine, Gln

Polar, uncharged at neutral pH

Question 7

E

Answer 7

Glutamic acid / Glutamate, Glu

Polar, negatively charged at neutral pH

Question 8

G

Answer 8

Glycine, G

Nonpolar

Question 9

H

Answer 9

Histidine, His

Polar, positively charged at neutral pH

Question 10

I

Answer 10

Isoleucine, Ile

Nonpolar

Question 11

L

Answer 11

Leucine, Leu

Nonpolar

Question 12

K

Answer 12

Lysine, Lys

Polar, positively charged at neutral pH

Question 13

M

Answer 13

Methionine, Met

Nonpolar

Question 14

F

Answer 14

Phenylalanine, Phe

Nonpolar

Question 15

P

Answer 15

Proline, Pro

Nonpolar

Question 16

S

Answer 16

Serine, Ser

Polar, uncharged at neutral pH

Question 17

T

Answer 17

Threonine, Thr

Polar, uncharged at neutral pH

Question 18

W

Answer 18

Tryptophan, Trp

Nonpolar

Question 19

Y

Answer 19

Tyrosine, Tyr

Polar, uncharged at neutral pH

Question 20

V

Answer 20

Valine, Val

Nonpolar

Question 21

Grouping: B

Answer 21

Asparagine or aspartic acid, Asx

Asparagine - polar, uncharged. Aspartic acid - polar, negatively charged

Question 22

Grouping: Z

Answer 22

Glutamine or glutamic acid, Glx

Glutamine - polar, uncharged. Glutamic acid - polar, negatively charged