AI-generated practice question — model-generated for extra practice, not a previous-year CBSE board question.
Digestive enzymes break down complex food substances (like starch, proteins, and fats) into simpler, smaller molecules (like glucose, amino acids, fatty acids) that can be absorbed by the body.
The examiner expects a direct, functional statement. Key idea: enzymes are biological catalysts that break complex molecules → simpler molecules for absorption. Mentioning one or two examples (amylase, pepsin, lipase) strengthens the answer but is not compulsory for 1 mark.