Answer:
Starch is a macro-molecule, meaning in it's current form, the molecule is too large to enter the person's blood vessels or cells. Starch needs to be broken down into glucose, this is the only way the carbohydrates can reach a person's cells. That process takes time.
Explanation:
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A. Because a starch molecule is too large to fit into a cell and needs to first be broken down into smaller glucose molecules in the digestive system.
