Task 3

3.2

• Fats ands sweets


• Protien


• Dairy and Eggs


• Fruit


• Vegetables


• Cereal, starch and starchy vegetables

3.3

Carbohydrates
The major source of energy for the body

Proteins
Proteins are composed of the elements carbon (C), oxygen (O), hydrogen (H), and nitrogen (n). They have a variety of uses in the body, including serving as a source of energy, as substrates (starter materials) for tissue growth and maintenance, and for certain biological functions,

Lipids (fats and oils)
Lipids are high-energy yielding molecules composed mostly of carbon (C), hydrogen (H), and oxygen (O) (though lipids have a smaller number of oxygen molecules than carbohydrates have)

Vitamins (both fat-soluble and water-soluble)
Vitamins are chemical compounds that are required for normal growth and metabolism. Some vitamins are essential for a number of metabolic reactions that result in the release of energy from carbohydrates, fats, and proteins.

Minerals
The functions of minerals do not include participation in the yielding of energy. But they do play vital roles in several physiological functions, including critical involvement in nervous system functioning, in cellular reactions, in water balance in the body, and in structural systems, such as the skeletal system.


Water
Some of its actions include its use as a solvent (a substance that other substances dissolve in), as a lubricant, as a conduction system for transportation of vital nutrients and unnecessary waste, and as a mode of temperature regulation.


3.4

3.5