After ingestion, the first type of macromolecule to be "digested" by enzymes in the human digestive system is

After ingestion, the first type of macromolecule to be "digested" by enzymes in the human digestive system is



A) protein.
B) carbohydrate.
C) fat.
D) nucleic acid.
E) glucose.



Answer: B


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AP Biology

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