Amino Acids

Question 1

What is D?

Answer 1

Aspartic Acid (Asp)

• Polar Charged
• Negative

Question 2

What is E?

Answer 2

Glutamic Acid (Glu)

• Polar charged
• Negative

Question 3

What is K?

Answer 3

Lysine (Lys)

• Polar charged
• Positive

Question 4

What is R?

Answer 4

Arginine (Arg)

• Polar charged
• Positive

Question 5

What is H?

Answer 5

Histidine (His)

• Polar charged
• Positive

Question 6

What is S?

Answer 6

Serine (Ser)

- Polar uncharged

Question 7

What is T?

Answer 7

Threonine (Thr)

- Polar uncharged

Question 8

What is Q?

Answer 8

Glutamine (Gln)

- Polar uncharged

Question 9

What is N?

Answer 9

Asparagine (Asn)

- Polar uncharged

Question 10

What is Y?

Answer 10

Tyrosine (Tyr)

- Polar uncharged

Question 11

What is A?

Answer 11

Alanine (Ala)

- Nonpolar

Question 12

What is V?

Answer 12

Valine (Val)

- Nonpolar

Question 13

What is L?

Answer 13

Leucine (Leu)

- Nonpolar

Question 14

What is I?

Answer 14

Isoleucine (Ile)

- Nonpolar

Question 15

What is M?

Answer 15

Methionine (Met)

- Nonpolar

Question 16

What is F?

Answer 16

Phenylalanine (Phe)

- Nonpolar

Question 17

What is W?

Answer 17

Tryptophan (Trp)

- Nonpolar

Question 18

What is G?

Answer 18

Glycine (Gly)

- One H atom and resides at sites where two polypeptides come into close contact.

Question 19

What is C?

Answer 19

Cysteine (Cys)

• Polar uncharged side chain
• Can form a covalent bond with another cysteine to form a disulfide link.

Question 20

What is P?

Answer 20

Proline (Pro)

• Hydrophobic side chain
• Can create kinks in polypeptide chains and disrupt ordered secondary structure.