56. Which monosaccharide is classified as a reducing sugar? (A) Glucose (B) Methyl‑α‑D‑glucopyranoside (C) Sucrose (D) Trehalose

63. Which statement correctly distinguishes coenzymes from prosthetic groups? (A) Coenzymes bind transiently; prosthetic groups are tightly or covalently bound (B) Prosthetic groups are inorganic; coenzymes are organic (C) Coenzymes are permanently bound; prosthetic groups are transient (D) Prosthetic groups do not participate in catalysis