What are the steps of nutrition? Explain each of them.in short
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Answer:
The process in which the digested food passes through the intestinal wall into blood stream is called absorption. 4) Assimilation: The process in which the absorbed food is taken in by the body cells and used for energy, growth and repair is called assimilation.
There are five steps in the process of Nutrition in animals. These are: Ingestion, Digestion, Absorption, Assimilation and Egestion.
1. Ingestion: is the process of taking food in to the body or ‘eating of food’ by the animal.
2. Digestion: is the process in which the food containing large, insoluble molecules is broken down in to small, water soluble molecules which can be absorbed by the body or digestion is the dissolving of the solid food.
3. Absorption: is the process in which the digested food passes through the intestinal wall in to blood stream.
4. Assimilation: is the process in which the absorbed food is taken in by the body cells and used for energy, growth and repair.
5. Egestion: is the process in which the undigested food is removed from the body.