Multiple choice

Enzymes help in

  1. immune system

  2. respiration

  3. reproduction

  4. digestion of food

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Digestive enzymes (like amylase, protease, lipase) break down food molecules into smaller absorbable units during digestion. They catalyze specific reactions - carbohydrates to sugars, proteins to amino acids, fats to fatty acids. While enzymes play roles in many body processes, the digestive system is their primary domain.