Carbohydrates Quiz

What type of biomolecule are carbohydrates?

• Polyhydroxylated aldehydes and ketones

• Long-chain fatty acids

• Peptide-based macromolecules

• Nucleic acids

What is the primary function of carbohydrates in living organisms?

• Structural support

• Catalysis of reactions

• Energy storage and supply

• DNA synthesis

Which of the following is a monosaccharide?

• Glucose

• Lactose

• Sucrose

• Starch

Which monosaccharide is known as fruit sugar?

• Glucose

• Fructose

• Galactose

• Ribose

What is the function of cellulose in plants?

• Energy storage

• Structural support in the cell wall

• DNA synthesis

• Protein production

What distinguishes an aldose from a ketose?

• Type of functional group

• Number of carbon atoms

• Presence of a hydroxyl group

• Number of hydrogen atoms

What is an example of a non-reducing sugar?

• Maltose

• Lactose

• Sucrose

• Glucose

Which carbohydrate is a major component of the exoskeleton of crustaceans?

• Cellulose

• Chitin

• Glycogen

• Starch

What is the repeating unit of hyaluronic acid?

• Glucose and fructose

• N-acetyl-D-glucosamine and D-glucuronic acid

• Cellobiose and maltose

• Sucrose and starch

Which of the following is a homopolysaccharide?

• Hyaluronic acid

• Glycogen

• Heparin

• Proteoglycan