Glucose is a type of which macronutrient?

• A. Carbohydrate
• B. Lipid
• C. Protein
• D. Nucleic Acid

Answer: (A)

Glucose is a carbohydrate because it is a simple sugar (a monosaccharide) that serves as a quick, readily available energy source for the body. Carbohydrates are one of the main macronutrient groups and include sugars like glucose, as well as starches and fibers. This distinguishes glucose from lipids, which are fats that store concentrated energy and form membranes; proteins, which perform structural and enzymatic roles; and nucleic acids, which store and transmit genetic information. So, glucose falls squarely in the carbohydrate category, not among lipids, proteins, or nucleic acids.