Food

Question 1

What is our food made of?

Answer 1

1. carbohydrates
2. Fats
3. protein
4. vitamins
5. minerals
6. water

Question 2

Carbohydrate

Answer 2

Starches and sugars,or roughage

Question 3

Starches and sugars

Answer 3

These provide us with energy

Question 4

Fibre (roughage)

Answer 4

Passes through the digestive system to make sure it is in good working order and avoid constipation

Question 5

Starch

Answer 5

Is found in potatoes,bread,pasta,rice

Question 6

Sugar

Answer 6

In sugar,jam,honey,fruit

Question 7

Fibre

Answer 7

In bran and vegetables

Question 8

We use iodine to test for

Answer 8

Starche

Question 9

Iodine turns blue/black

Answer 9

In the presence of starch

Question 10

We need fats in our diets because

Answer 10

1. To store energy in the body

2. The layer of fat just under the skin gives our body insulation

Question 11

Sources of fat

Answer 11

Milk,fatty meat,dairy products e.g cheese

Question 12

We test for fat using

Answer 12

Brown paper

Question 13

Why do we need proteins in our food

Answer 13

1. They are the main source of material that our cells need to grow
2. Proteins are needed for growth and repair.

Question 14

We test for protein using

Answer 14

The biuret test (using copper and sulphate and sodium hydroxide)

Question 15

Using the biuret test,the chemicals turn from

Answer 15

Blue to violet in the presence of protein

Question 16

Glucose

Answer 16

Is a reducing sugar

Question 17

Glucose is tested for by adding

Answer 17

Benedicts solution and heating. It turns from blue to brick red.

Question 18

Why do We need food

Answer 18

To give us energy,protect against disease,to keep us warm,for growth,to repair of body cells