Amino Acids

Question 1

What is the class of Histidine?

Answer 1

Histidine, H
Basic amino acid

Question 2

What is the name, symbol, and class of Lys?

Answer 2

Lysine, K
Basic amino acid

Question 3

What is the name, symbol, and class of Arg?

Answer 3

Arginine, R
Basic amino acid

Question 4

What makes a basic amino acid basic? How polar are they?

Answer 4

R-groups have a positive charge because they have accepted a proton

Highly polar

Question 5

What is the name, symbol, and class of Asp?

Answer 5

Aspartate, D
Acidic amino acid

Question 6

What is the name, symbol, and class of Glu?

Answer 6

Glutamate, E
Acidic amino acid

Question 7

What makes acidic amino acids acidic? How polar are they?

Answer 7

R-groups have carboxylic acid (COOH) more commonly shown as COO-

Highly polar

Question 8

What is the name, symbol, and class of Ser?

Answer 8

Serine, S
Polar, uncharged

Question 9

What is the name, symbol, and class of Thr?

Answer 9

Threonine, T
Polar, uncharged

Question 10

What is the name, symbol, and class of Cys?

Answer 10

Cysteine, C
Polar, uncharged

Question 11

What is the name, symbol, and class of Asn?

Answer 11

Asparagine, N
Polar, uncharged

Question 12

What is the name, symbol, and class of Gln?

Answer 12

Glutamine, Q
Polar, uncharged

Question 13

What characterizes a polar, uncharged amino acid?

Answer 13

Polar but uncharged, and can hydrogen bond because of OH and NH2 groups

Question 14

What amino acid has a sulfur and can form disulfide bonds?

Answer 14

Cysteine

Question 15

What amino acids have amide R-groups? What class do they belong to?

Answer 15

Asparagine (Asn, N)
Glutamine (Gln, Q)

Polar, uncharged

Question 16

Are polar amino acids hydrophilic or hydrophobic?

Answer 16

Hydrophilic

Question 17

What is the name, symbol, and class of Gly?

Answer 17

Glycine, G
Non-polar

Question 18

What is the name, symbol, and class of Ala?

Answer 18

Alanine, A
Nonpolar

Question 19

What is the name, symbol, and class of Pro?

Answer 19

Proline, P
Nonpolar

Question 20

What is the name, symbol, and class of Val?

Answer 20

Valine, V
Nonpolar

Question 21

What is the name, symbol, and class of Leu?

Answer 21

Leucine, L
Nonpolar

Question 22

What is the name, symbol, and class of Ile?

Answer 22

Isoleucine, I
Nonpolar

Question 23

What is the name, symbol, and class of Met?

Answer 23

Methionine, M
Nonpolar

Question 24

What is the name, symbol, and class of Phe?

Answer 24

Phenylalanine, F
Nonpolar

Question 25

What is the name, symbol, and class of Tyr?

Answer 25

Tyrosine, Y Nonpolar

Question 26

What is the name, symbol, and class of Trp?

Answer 26

Tryptophan, W Nonpolar

Question 27

What amino acid forms a covalent bond between the backbone and side chain? What class does it belong to?

Answer 27

Proline Nonpolar

Question 28

How do you recognize a nonpolar amino acid?

Answer 28

Hydrophobic molecules made mostly of carbons and hydrogens and carbon rings. Cannot form hydrogen bonds

Question 29

What amino acid contains sulfur but does not form disulfide bonds?

Answer 29

Methionine