acid vs base

Question 1

Amino group (NH2)

Answer 1

-NH2 attract a proton and act as a base

Question 2

Carboxylic acid groups COOH

Answer 2

-COOH release a proton and act as acids

Question 3

carbonyl groups R2C=O

Answer 3

R2C=O have sites that link molecules into larger more complex compounds

Question 4

Hydroxyl groups OH

Answer 4

-OH act as a weak acids

Question 5

Phosphate groups PO3 2-

Answer 5

PO3^2- have two negative charges

Question 6

Sulfhydryl groups SH

Answer 6

-SH link together via disulfide bonds