Question

describe the physiology of digestion of food in human beings​

Answer 1

Digestion is the breakdown of large insoluble food molecules into small water-soluble food molecules so that they can be absorbed into the watery blood plasma. In certain organisms, these smaller substances are absorbed through the small intestine into the blood stream. Digestion is a form of catabolism that is often divided into two processes based on how food is broken down: mechanical and chemical digestion. The term mechanical digestion refers to the physical breakdown of large pieces of food into smaller pieces which can subsequently be accessed by digestive enzymes. In chemical digestion, enzymes break down food into the small molecules the body can use.

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Answer 2

Digestion. ... In chemical digestion, enzymes break down food into the small molecules the body can use. In the human digestive system, foodenters the mouth and mechanicaldigestion of the food starts by the action of mastication (chewing), a form of mechanical digestion, and the wetting contact of saliva

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