Glucose is an important sugar in a person's metabolic cycle. Identify the functional group circled.

Question

Quizplus · Accepted Answer

The functional group circled is a carbonyl group which consists of a carbon atom double bonded to an oxygen atom. Since the carbonyl group is located at the end of the carbon chain, it is an aldehyde functional group. Glucose contains an aldehyde functional group on its first carbon atom. The other options (B) ketone, (C) alcohol, (D) ester, and (E) carboxylic acid do not fit the structure of the functional group circled in glucose.

Glucose Is an Important Sugar in a Person's Metabolic Cycle