Amino Acids

Question 1

Answer 1

Leucine(leu, L)
NP
Like valine but with an inserted methyl

Question 2

Answer 2

Proline(Pro, P)
NP
Only cyclic structure joining the R group W/ main chain amino group

Question 3

Answer 3

Alanine(Ala, A)
NP
Methyl added to Ca

Question 4

Answer 4

Valine(Va, V)
NP
V-shaped hydrocarbon tail added to Alanine

Question 5

Answer 5

Methionine(Met, M)
NP
Methyl group on a sulfur

Question 6

Answer 6

Tryptophan(Trp, W)
NP
Terminal indole ring structure forms a “W” shape

Question 7

Answer 7

Phenylalanine(Phe, F)
NP
Phenyl group added to Alanine

Question 8

Answer 8

Isoleucine(Ile, I)
NP
Isomer of leucine

Question 9

Answer 9

Glycine(Gly, G)
Polar
Smallest amino acid

Question 10

Answer 10

Serine(Ser, S)
Polar
Hydroxyl added to Alanine

Question 11

Answer 11

Asparagine(Asn, N)
Polar
Aspartate with an N(amine) added

Question 12

Answer 12

Glutamine(Glu, Q)
P
Glutamate with a amine added

Question 13

Answer 13

Threonine(Thr, T)
P
Adding a CH3 and OH

Question 14

Answer 14

Cysteine(Cys, C)
P
Shaped like an S like the sulfur in it

Question 15

Answer 15

Tyrosine(Tyr, Y)
P
The phenyl has an “O” the hydroxyl on it

Question 16

Answer 16

Aspartic Acid(Asp, D)
Acidic and negatively charged
Carboxyl group added to Alanine

Question 17

Answer 17

Glutamic Acid(Glu, E)
Acidic and negatively charged
Like Asp but with an added CH3

Question 18

Answer 18

Lysine(Lys, K)
Basic and positively charged
Amino group added to a long carbon chain

Question 19

Answer 19

Arginine(Arg, R)
Basic and positively charged
Most hydrophilic carrying a guanidinium group

Question 20

Answer 20

Histidine(His, H)
Basic and polar
Imidazole group makes only buffer at physiological pH