Functional Groups

Part B

Which of these is a phosphate group?

Correct

Of the choices, this is the only one that contains phosphorus.

Part E

Which of these functional groups is characteristic of alcohol?

Correct

Hydroxyl groups are characteristic of alcohol.

Part F

Which of the functional groups behaves as a base?

Correct

The electronegativity of nitrogen means that amino groups tend to pick up hydrogen ions.

Part G

Which of these groups is characteristic of thiols?

Correct

Thiols are characterized by the presence of a sulfhydryl group.

Part H

Which of these groups plays a major role in energy transfer?

Correct

Phosphate groups are a component of ATP.

Part J

Which of these functional groups is characteristic of a ketone?

Correct

A carbonyl group in the middle of a carbon skeleton characterizes ketones.

Part K

Which of functional groups listed below behaves as an acid?

Correct

By donating hydrogen ions, carboxyl groups act as an acid.

Think!