food
DESCRIPTION
Food. Carbohydrates. Food Groups. Proteins. Fats and Oils. Vitamins. Minerals. Carbohydrates. Starch and Sugars Also fibre (Called roughage-to make you gooooooooo!) Used for energy. Add Iodine solution. Blue-black colour appears. Test for Starch. Solution Containing Starch. - PowerPoint PPT PresentationTRANSCRIPT
Food
Food Groups
Proteins
VitaminsMinerals
Fats and Oils
Carbohydrates
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 (LackScurvy)• Vitamin B1……Nerves (BeriBeri)• Vitamin D……..Bones (Rickets)
Food PyramidA 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 waterMust be an energy conversionFOOD HAS ENERGY
Peanut
Summary