Which of the following is NOT a macromolecule?
- A. Starch
- B. Glycogen
- C. Glucose
- D. Cellulose
Explanation
Glucose is a monosaccharide, a single small unit and therefore a micromolecule, while the other three are polysaccharides built from thousands of glucose units joined by glycosidic bonds. Macromolecules are polymers assembled from repeating monomers by condensation, so the test is whether the molecule can be hydrolysed into smaller repeating units. Glucose cannot.
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