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SAT® Subject Test in Biology

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Functional Groups

SATBIO-VT4HDS

What are the three functional groups that make up the backbone of all amino acids?

A

Carboxy ($-COOH$), amino ($-NH_2$), hydrogen ($-H$)

B

Carbonyl ($C=O$), amino ($-NH_2$), hydrogen ($-H$)

C

Methyl ($-CH_3$), carboxyl ($-COOH$), amino ($-NH_2$)

D

Amino ($-NH_2$), hydroxyl ($-OH$), carboxyl ($-COOH$)

E

Amino ($-NH_2$), carbonyl ($C=O$), methyl ($-CH_3$)