Chemical digestion

Question

Which statements describe chemical digestion of food molecules? Select all that apply.

1. AWater participates in hydrolysis.✓ Correct

   Hydrolysis uses water in the breakdown process.

2. BDigestive enzymes accelerate hydrolysis.✓ Correct

   Enzymes increase the rate of this breakdown.

3. CLarge nutrient molecules are converted into smaller molecules.✓ Correct

   Breakdown produces smaller molecules available for absorption.

4. DHydrolysis requires food molecules to become larger.✗ Incorrect

   The process breaks complex molecules into smaller ones.

5. EDigestive enzymes slow hydrolysis.✗ Incorrect

   These enzymes speed it up.

Answer

A. Water participates in hydrolysis. · B. Digestive enzymes accelerate hydrolysis. · C. Large nutrient molecules are converted into smaller molecules.

Rationale

Digestive enzymes accelerate hydrolysis, a breakdown process that uses water. Chemical digestion reduces large carbohydrate, protein, and fat molecules to smaller molecules that cells can absorb and use.