Question

Which is mechganical process in human nurtition

Answer 1

Nutrition is defined as the sum of the following processes – ingestion, digestion, absorption,

assimilation and egestion.

 Some definitions that you need to know:

o Ingestion is the process where food is taken in – this occurs in the mouth.

o Digestion is the process where large molecules are broken down into smaller

molecules either mechanically or chemically.

o Absorption is the process where the molecules move through the intestinal walls

(small intestine) into the blood vessels.

o Assimilation is the process where nutrients are moved into and used by the cell.

o Egestion is the process whereby unused nutrients are eliminated from the digestive

system