Matric Notes Class IX Biology Nutrition in Man

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Nutrition in Man

Like all other animals human beings need food for following activities:

1. To get energy this may be used to carry out different activities in the body.
2. To build new protoplasm in the cells, renew and replaced damaged cells and tissues for growth and reproduction.
3. To maintain health and build resistance against various diseases.

Man’s diet consists of following components:

1. Carbohydrates
2. Proteins
3. Lipids
4. Vitamins
5. Mineral Salts
6. Water