Question

write a short note on digestion​

Answer 1

Answer:

please look into the attached file

Answer 2

Explanation:

Digestion is the way that an organism changes a substance into nutrients. This happens in the gastrointestinal system. Humans start digesting food in the mouth. Food is chewed by the teeth. Food is swallowed, which means it goes through the esophagus. It goes into the stomach, where it is mixed with acid.

Digestion occurs in three phases. Mechanical digestion is the physical breakdown of large pieces of food into smaller pieces which can be got at by digestive enzymes. In chemical digestion, enzymes break down food into the small molecules the body can use. Finally, the nutrients are absorbed into the blood stream. Once in the blood stream the nutrients are taken to the liver, which is a kind of chemical factory for the body.

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