General Knowledge for SSC Exams (Summary of Functions of
Different Cell Organelles)
The components of food are: Carbohy-drates, Fats,
Proteins, Minerals, Vitamins, Water and Roughage.
If all the components are present in optimum
proportions and quantity for maintaining the body in perfect state of
health, activity and development then the food is called balanced diet.
Constitutes 3 elements : Carbon, Hydrogen and
Daily requirement 500 gms. 1 gm gives 17 KJ of
Sources : 3 main cereals (wheat, rice and maize),
sugar cane, milk, fruits, honey, beet, etc.
They are of 3 types : Cellulose, Starch and Sugar.
Structurally, carbohydrates are of 3 types :
Monosaccharides, Disaccharides and Polysaccharides.
Excess carbohydrate is stored in the liver in the
form of glycogen.
Provides twice the energy of carbohydrates (1 gm
provides 37 KJ of energy).
Acts as the reserve food material because excess
fat is stored in the liver and as adipose tissue.
An enzyme called Lipase digests fats. It breaks
down into fatty acids and glycerol.
Daily requirement: 50 gms.
Made up of Carbon, Hydrogen, Oxygen and Nitrogen.
Important for growth and repair of the body.
Made up of amino acids.
Kwashiorkar and Marasmus are the diseases which
occur due to deficiency of protein.