Biology Unit 1

  1. Carbohydrates are needed for energy release
  2. Fats are needed to keep warm
  3. Protiens are needed for cell repair, cell replacement and growth
  4. Fibre prevents constipation
  5. Small amount of minerals are needed for general well being.
  • Created by: Zoya
  • Created on: 29-01-13 18:57

Diet and exercise

 Different food groups have different uses in the body. For example;

  • Carbohydrates - are needed to release energy.
  • Fibre - is needed to prevent constipation.
  • Protien - is needed for cell replacement, cell repair, and also growth.
  • Fats are needed to keep warm and to make cell membrane.

The metabolic rate is the rate at which chemical reactions happen in our bodies. Some factors that affect the metabolic rate are:

  • The activities a person does
  • The proportion of muscle to fat in the body.
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