Ionic States of amino acids and physiological pH

Question 1

What is an Ampholyte amino acid?

Answer 1

When dissolved in water can act as an acid or a base

Question 2

Amino group has a pKa at 10, therefore:

Typically Positive at a physiological pH
Typically Negative at a physiological pH

Answer 2

Typically Positive at a physiological pH

Question 3

Carboxyl group had a pKa at 2.5, therefore:

Typically Positive at a physiological pH
Typically Negative at a physiological pH

Answer 3

Typically Negative at a physiological pH

Question 4

What are Zwitterions?

Answer 4

charged groups cancel out and result in a neutral ion

Question 5

All amino acids are chiral molecules EXCEPT what amino acid?

Answer 5

Glycine

Question 6

What is a Chiral molecule?

Answer 6

When a carbon atom has 4 different substituents attached to it.