AMINO ACIDS

Question 1

–vary in size, shape, charge, acidity, functional groups present, hydrogen-bonding ability, and chemical reactivity.

Answer 1

R = side chain

Question 2

Based on common “R” groups, there are how many amino acids?

Answer 2

20

Question 3

• Hydrophobic
• Water fearing

SUBTYPES:
Alkyl
Aromatic

Answer 3

Non-Polar Amino Acids

Question 4

• Hydrophilic
• Water loving

SUBTYPES:
Neutral
Acidic
Basic

Answer 4

Polar Amino Acids

Question 5

Contain carboxyl group as part of the side
chains

Answer 5

Polar acidic

Question 6

Contain amino group as part of the side chain

Answer 6

Polar basic

Question 7

bond between two amino acids

Answer 7

Dipeptide

Question 8

bond between ~ 10 - 20 amino
acids

Answer 8

Oligopeptide

Question 8

bond between large number of
amino acids

Answer 8

Polypeptide

Question 9

Peptides that contain the same amino acids but present in different
order are different molecules (constitutional isomers) with different
properties

Answer 9

ISOMERIC PEPTIDES

Question 10

are pentapeptide neurotransmitters
produced by the brain and bind receptor within the brain

Answer 10

Enkephalins