Food Flashcards
Sources of sugar
Jam
Sweets
Soft drinks
Sources of starch
Bread
Potatoes
Pasta
Sources of fibre
Bran
Veg
Fruit
Function of sugar
Provides energy
Function of starch
Provides energy
Function of fibre
Prevents constipation
Classification of fat
Saturated fat
Unsaturated fat
Sources of fat
Butter
Fatty meat
Cheese
Function of fat
Provides energy and heat
sources of protein
Fish
Eggs
Nuts
Lean meat
Function of protein
Growth and repair of cells
Classification of vitamins
Vitamin c
Vitamin d ………..
Sources of vitamin c
Oranges
Sources of vitamin d
Milk
Cheese
Sunlight
Function of vitamin c
Healthy gums and skin
Function of vitamin d
Healthy bones
Classification of minerals
Calcium
Iron
Sources of calcium
Milk
Cheese
Sources of iron
Red meat
Function of calcium
Strong bones
Function of iron
To make red blood cells
What do you do to test for starch in a food
1 get a food to test and place it on a tile
- Use a dropper to add a drop of iodine
- take down colour change
If the food time contains starch what colour will the iodine become
From orange/brown to blue/blackw
What colour will the iodine go if there isn’t starch
Stays orange/brown
How do you test for reducing sugar (glucose)
- Put a dissolved food sample and Benedict’s solution into a test tube
- Put that test tube into a large beaker of water
- Turn on the Bunsen burner
4 put the beaker on top of the tripod - Identify colour change
What colour will the food sample tuen if glucose is heated
Blue to brick red
What colour will the food sample be it glucose isn’t present
Stays blue
How do you test for fats
1put a sample of food onto brown Paper 2 fold over paper /. Rub together 4. Open agin 5. Check if stain in translucent
Waht will the stain be if fat is present
Translucent
What will the stain be if fat isn’t present
Nothing w
How do you test for protein
- a food sample unto a test tube
- Put a drop of copper sulphate and sodium hydroxide into the test tube
3 Wait for the result
4 Take disown results
What colour will it the food sample change if protein is present
Blue to violet
What colour will the food sample change if protein isn’t present
Stays the same
What is a balanced diet
It provides the right amount of the right nutrients to stay healthy
What does a food pyramid show
Show jow much of each nutrient is needed for a heathy diet
How much of the cereals and potatoes groups should we have a day
6 portions
How many portions of fruit and veg group a day
5 portions
How mauch portions of the dairy group. A day
3 portion a
How many portions of the protein group a dat
2 portions
How many portions of the fatty food s group a dat
Rarely
How do you find out how much enegy is in foods
- Put a test tube with water on a resort stand (connected to the clamp for diagram)
- Place a thermometer in the test tube
- set fire to the food sample
- The temperature of the water should rise
What are the 3 classifications of carbohydrates
Sugar
Starch
Fibre
