B1.3.1 - CARBOHYDRATES, LIPIDS AND PROTEINS!!!

why is the food you eat important? 3

1. PROTEIN- helps growth and repair of muscle tissues

2. CARBOHYDRATES AND FATS- provides energy to move and survive

3. VITAMINS AND MINERALS- stay healthy

What is your metabolic rate?

Chemical reactions in your cells that transfer energy from chemical stores in food. Higher the metabolic rate the more you need to eat.

What are carbohydrates (a polymer)? 3

1. They are made from smaller carbohydrate molecules like sugar

2. inside your body, carbohydrase enzymes break down carbohydrates into sugar

3. the enzyme that breaks down starch is amylase

What are proteins (a polymer)? 2

1. formed from amino acids and there are 20 different amino acids

2. inside your body protease enzymes break down proteins into amino acids

What are lipids? 4

1. fats and oils that you eat

2. they are made from 3 fatty acid molecules and a glycerol molecule

3. inside your body lipase enzyme breaks down lipids into fatty acids and glycerol

4. once digested they are absorbed into the bloodstream and transported to cells that need them