Amino Acids

Question 1

Front

Answer 1

Back

Question 2

Glycine (Gly, G)

Answer 2

Smallest amino acid, just H as the side chain.

Question 3

Alanine (Ala, A)

Answer 3

Has a methyl (-CH3) group as the side chain.

Question 4

Valine (Val, V)

Answer 4

Branched-chain amino acid with -CH(CH3)2 group.

Question 5

Leucine (Leu, L)

Answer 5

Branched-chain with -CH2-CH(CH3)2 group.

Question 6

Isoleucine (Ile, I)

Answer 6

Branched-chain with -CH(CH3)-CH2-CH3 group.

Question 7

Methionine (Met, M)

Answer 7

Sulfur-containing amino acid (-S-).

Question 8

Proline (Pro, P)

Answer 8

Cyclic structure; imino acid.

Question 9

Phenylalanine (Phe, F)

Answer 9

Aromatic amino acid with benzene ring.

Question 10

Tryptophan (Trp, W)

Answer 10

Aromatic amino acid with an indole ring.

Question 11

Serine (Ser, S)

Answer 11

Polar uncharged; has hydroxyl (-OH) group.

Question 12

Threonine (Thr, T)

Answer 12

Polar uncharged; hydroxyl (-OH) and extra CH3.

Question 13

Asparagine (Asn, N)

Answer 13

Polar uncharged; contains amide (-CONH2).

Question 14

Glutamine (Gln, Q)

Answer 14

Polar uncharged; amide (-CONH2) with extra CH2.

Question 15

Cysteine (Cys, C)

Answer 15

Contains sulfhydryl (-SH) group; can form disulfide bonds.

Question 16

Aspartic Acid (Asp, D)

Answer 16

Negatively charged (acidic) with -COO- group.

Question 17

Glutamic Acid (Glu, E)

Answer 17

Negatively charged (acidic) with -COO- and extra CH2.

Question 18

Lysine (Lys, K)

Answer 18

Positively charged (basic) with -NH3+ at the end.

Question 19

Arginine (Arg, R)

Answer 19

Positively charged (basic) with guanidinium group.

Question 20

Histidine (His, H)

Answer 20

Positively charged (basic) with imidazole ring.

Question 21

Mnemonic for Nonpolar Amino Acids

Answer 21

“Grandma Always Visits London In May For Winston.”

Question 22

Mnemonic for Polar Uncharged Amino Acids

Answer 22

“Come Take Great Aspirin Soon.”