Question

Explain with the help of neat and well developed diagrams the different steps involved in the nutrition in human beings.​

Answer 1

Answer:

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Explanation:

Ingestion: The process of taking food into the body is called ingestion.

Digestion: the process in which the foodcontaining large, insolublemolecules is broken downinto small, water soluble molecules is called digestion

Absorption: Theprocess in which the digested food passes through the intestinal wallinto blood stream is called absorption.

Assimilation: The processin which the absorbed food is taken in by the body cells and used for energy, growth and repair is called assimilation

Egestion: The process in which the undigested food is removed from the body is called egestion.

Answer 2

The main steps of nutrition in humans are ingestion, digestion, absorption, assimilation, and egestion.

Explanation:

• The main steps of nutrition in humans are ingestion, digestion, absorption, assimilation, and egestion.
• Ingestion is the process of taking in food through the mouth. In vertebrates, the teeth, saliva, and tongue play important roles in mastication.
• Digestion is the breakdown of large insoluble food molecules into small water-soluble food molecules to be absorbed into the watery blood plasma.
• Absorption refers to the movement of nutrients, water, and electrolytes from the lumen of the small intestine into the cell, then into the blood.
• Assimilation is the movement of digested food molecules into the cells of the body.
• Egestion is the act or process of voiding or discharging undigested food as faeces.