Food

Question 1

Why do I need food

Answer 1

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

Question 2

What is our food made of

Answer 2

Carbohydrates,fats,protein,vitimans,minerals,water

Question 3

Carbohydrate

Answer 3

Starches and sugars or roughage

Question 4

Function of carbohydrates

Answer 4

these provide us with energy

Question 5

Fibre (roughage)

Answer 5

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

Question 6

Starch

Answer 6

Found in potatoes,bread,pasta and rice

Question 7

Sugar

Answer 7

Found in sugar,jam,honey,fruit

Question 8

Fibre

Answer 8

Found in bran and vegetables

Question 9

We use iodine to test for

Answer 9

Starch

Question 10

Iodine turns blue and black

Answer 10

In the presence of starch

Question 11

We need fats in our diet because

Answer 11

⚫️they store energy in the body

⚫️the layer of fat just under the skin gives our body insulation

Question 12

Sources of fat

Answer 12

Milk,fatty meat,dairy,products eg cheese

Question 13

We test for fat using

Answer 13

Brown paper

Question 14

Why we need proteins in our food

Answer 14

⚫️they ar they main source of material that our cells need to grow
⚫️proteins are needed for growth and repair

Question 15

Sources of protein

Answer 15

Milk,lean meat,fish,eggs,nuts

Question 16

We test for protein using

Answer 16

The biuret test (using copper sulphate and sodium hydroxide)

Question 17

Using the biuret test to chemicals turn from

Answer 17

Blue to violet in the presence of protein

Question 18

Glucose

Answer 18

Is a reducing sugar

Question 19

Glucose is tested for by adding

Answer 19

Benedictus solution and heating.it turns from blue to brick red