Food

Food Groups Proteins Vitamins Minerals Fats and Oils Carbohydrates

Starch and Sugars Also fibre (Called roughage-to make you gooooooooo!) Used for energy

Test for Starch Blue-black colour appears Solution Containing Starch Add Iodine solution

Test for Glucose Orange colour appears Solution Containing Reducing Sugar Benedict’s solution Heat it up

Proteins Meat, Eggs, Cheese and Beans. Used to repair the body and grow new cells.

Test for Protein Violet Colour Solution Containing Protein Sodium Hydroxide Dilute Copper (II) Sulphate Solution

Fats and Oils Converted to energy Also used for insulation Brown paper test – Rub it on Food Clear patch on brown paper proves food contains oils

Minerals Simple elements needed for specific functions Calcium for………. Teeth and Bones Iron for…………. Blood Cells

Vitamins More complicated chemicals used in the body Vitamin C……..Skin (Lack  Scurvy) Vitamin B1……Nerves (BeriBeri) Vitamin D……..Bones (Rickets)

Food Pyramid A balanced diet includes all the food groups in the proportions of the pyramid

Food Labels

Heat Proof - Food has energy Burn food (A peanut in- fact) it heats up water Must be an energy conversion FOOD HAS ENERGY Peanut

Summary