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

Question

Quizplus · Accepted Answer

The functional group circled in the image 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 glucose molecule, it is an aldehyde functional group. This is because aldehydes have the carbonyl group at the end of the carbon chain, whereas ketones have the carbonyl group in the middle of the chain.

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