Question
Digestion is carried out by both mechanical and chemical methods. Justify.
✓
Answer
- Mechanical digestion includes various movements of alimentary canal that help chemical digestion.
- Mastication or chewing of food by teeth, churning in stomach and peristaltic movements of gastrointestinal tract bring about mechanical digestion in human body.
- Chemical digestion is a series of catabolic (breaking down) reactions that hydrolyze the food.
Thus, Digestion is carried out by both mechanical and chemical methods.
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