Question 19 • 2026-2027 EDGE Human Anatomy and Physiology A
After a meal that is high in carbohydrates, starch is converted into glycogen, a sugar storage molecule. The chart describes the stages a starch molecule goes through as it is metabolized. Pathway of Starch to Glycogen during DigestionStarting moleculeEnd result of metabolismStarchBroken down into maltose in the mouthMaltoseBroken down into glucose in the intestines and absorbed into the bloodGlucoseRemoved from blood; many glucose molecules are stored in the liver as a molecule of glycogenWhich process(es) are occurring in the cell to convert starch into glycogen?
Answer
A
only catabolism
B
only anabolism
C
both catabolism and anabolism
D
neither catabolism nor anabolism
Explanation
Starch is broken down into maltose and then glucose, which are smaller molecules; these breakdown steps are catabolism. The glucose molecules are then joined to form glycogen, a larger storage molecule, which is anabolism. Therefore, both catabolism and anabolism occur.
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