Carbohydrates Quiz

What is the standard ratio of atoms in carbohydrates?

• (CH₄)ₙ

• (CH₂O)ₙ

• (C₂H₄O)ₙ

• (C₆H₁₂O₆)ₙ

Which of the following is a pentose sugar?

• Glucose

• Ribose

• Fructose

• Galactose

What type of linkage connects monosaccharides in polysaccharides?

• Peptide linkages

• Glycosidic linkages

• Hydrogen bonds

• Ionic bonds

Which monosaccharide is used preferentially by cells as a source of stored chemical energy?

• Fructose

• Ribose

• Glucose

• Sucrose

What is released as a by-product when monosaccharides form polysaccharides?

• Oxygen

• Carbon dioxide

• Water

• Nitrogen

What is one of the primary functions of carbohydrates in cells?

• Long-term energy storage

• Short-term energy storage

• Structural support

• Protein synthesis

Which type of glucose is used to form the structural component cellulose?

• α-glucose

• β-glucose

• γ-glucose

• δ-glucose

What is the main function of glycoproteins on the cell surface?

• Energy storage

• Structural support

• Surface markers (antigens)

• Enzyme activity

Which type of blood is compatible with all other blood types due to the presence of both A and B glycoproteins?

• A

• B

• O

• AB

What structure can starch molecules adopt?

• Helical (amylose) or branched (amylopectin)

• Linear or circular

• Sheet or tubular

• Random coil or zigzag