Dennis Zhu Computer 8

 Provide energy  Two major types  Simple (sugar)  Complex (starches)  Contain carbon,oxygen and hydrogen  Called monomers: glucose and fructose  Examples  Vegetables and fruits  Oats  Sweets  etc. Carbohydrates

 Storage from energy  Provides insulation from the cold and the heat  Types  Unsaturated fats (plant foods and fish)  Saturated fats (animal products)  Trans fat (margarine)  Helps make foods taste good and smell good  Examples:  Animal products and plants  Sweets  etc. Fat

 Builds maintain and replaces tissues  Essential parts of organisms  Types  Enzymes proteins - (catalyze chemical and biochemical reactions within living cell and outside)  Hormones - (are responsible for processes in organisms)  Contain carbon, oxygen, hydrogen, nitrogen  Example  Dairy Foods  Beans, Peas and Lentils  Meat and Fish etc. Protein

Fibre  Prevent constipation and various other bowel problems  Types  Soluble fiber (dissolve in water as well as in the gastrointestinal tract )  Insoluble fiber (helps food pass through the digestive tract quickly and easily )  Lower blood cholesterol and triglyceride levels  Example  Whole wheat and grain products  fruits and vegetables  Etc.

Vitamin  Need to work properly  Types  Vitamin D helps your bones  Vitamin C helps your body heal if you get a cut  Vitamins B helps your body make energy  etc.  Helps the skin repel bacteria and viruses more effectively  Example  Almost every food contains

Mineral  Help your body stay healthy  Build strong bones and transmit nerve impulses  Types  Calcium (helps bones grow better)  Chloride (salt, salt substitutes)  etc.  Helps red blood cell production  Example  Pork products  Milk  Vegetable

Water  Use every day  Types  Hard water (contain calcium, iron, magnesium)  Raw water (has not been boiled)  million people die each year from water-related disease  Examples  wash dishes  Drink  etc.