Carbohydrates:
Carbohydrates are made up of carbon, hydrogen and oxygen. There are two differentn types of carbohydrates-
- simple carbohydrates: They are either made up of one unit of sugar (glucose C6H12O6) or two units of sugar (sucrose- sugar)
- Complex carbohydrates- such as starch and cellulose. They are made up of chains of simple sugar units bonded together. A water molecule is produced when the sugar units are bonded.
Some Carb foods: Bread, pasta, rice. These are broken up into glucose in the body and used in cellular respiration.
LIpids:
These are fats and oils. They are the most efficient energy store in the body. They are also made up of carbon, hydrogen and oxygen. They are made up of three molecules of fatty acids joined to a molecule of glycerol. The glycerol is always the same but there are different types of fatty acids making it either a solid or liquid.
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