Question

5. What is Digestion ? Describe briefly the process of digestion in man.
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Answer 1

Answer:

Digestion simply means the breakdown of complex food molecules to simple soluble forms that can be utilised by the body for its growth and maintenance.

Human beings show holozoic type of nutrition, I.e, they break down food inside their bodies.

Human digestive system starts from the mouth and ends at anus. This is passage is generally called the alimentary canal.

Answer 2

Explanation:

The human digestive system consists of the gastrointestinal tract plus the accessory organs of digestion (the tongue, salivary glands, pancreas, liver, and gallbladder). Digestion involves the breakdown of food into smaller and smaller components, until they can be absorbed and assimilated into the body. The process of digestion has three stages. The first stage is the cephalic phase of digestion which begins with gastric secretions in response to the sight and smell of food. This stage includes the mechanical breakdown of food by chewing, and the chemical breakdown by digestive enzymes, that takes place in the mouth