Glucose is an important sugar in a person's metabolic cycle. Identify the functional group circled.
A)Aldehyde
B)Ketone
C)Alcohol
D)Ester
E)Carboxylic acid

Question

Glucose is an important sugar in a person's metabolic cycle. Identify the functional group circled. 
A)Aldehyde 
B)Ketone 
C)Alcohol 
D)Ester 
E)Carboxylic acid

Quizplus · Accepted Answer

The functional group circled is a carbonyl group, which contains a carbon double bonded to an oxygen. In glucose, this carbonyl group is an aldehyde, as it is located at the end of the molecule.

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