Use the diagram of the molecular structure of lactic acid to answer the question.

An illustration shows the structure of lactic acid as C single bond C with functional groups CH3 and OH attached to the first C atom and O and OH attached to the second C atom.

Which functional groups are represented in this molecular structure?

(1 point)
Responses

A sulfhydryl group, hydroxyl group and a carboxyl group
A sulfhydryl group, hydroxyl group and a carboxyl group

A methyl group, and amino group, and a carboxyl group
A methyl group, and amino group, and a carboxyl group

A methyl group, a hydroxyl group, and a carboxyl group
A methyl group, a hydroxyl group, and a carboxyl group

A sulfhydryl group, and amino group, and a carboxyl group

1 answer

The molecular structure of lactic acid contains the following functional groups: a methyl group (–CH3), a hydroxyl group (–OH), and a carboxyl group (–COOH).

Thus, the correct response is:

A methyl group, a hydroxyl group, and a carboxyl group.