Food

Question 1

What is our food made of?

Answer 1

Carbohydrates, Fats, Protein, Vitamins, Minerals, Water

Question 2

Carbohydrate

Answer 2

Starches and sugars, or roughage

Question 3

Starch and Sugars

Answer 3

These provide us with energy

Question 4

Fibre (Roughage)

Answer 4

Passes through the digestive system to make sure it isn’t good working order and avoid constipation

Question 5

Starch

Answer 5

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

Starch

Question 9

Iodine turns blue/black

Answer 9

In the presence of starch

Question 10

We need fats in our diet because:

Answer 10

They store energy in the body. The layer of fat just under the skin gives our body insulation

Question 11

Sources of fat

Answer 11

Milk, fatty meat, dairy products

Question 12

We test for fat using…

Answer 12

Brown paper

Question 13

Why we need proteins in our food:

Answer 13

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

Question 14

Sources of protein:

Answer 14

Milk, lean meat, fish, eggs, nuts

Question 15

We test for protein using…

Answer 15

The biuret test (Using copper sulphate and sodium hydroxide)

Question 16

Using the biuret test, the chemicals turn from…

Answer 16

Blue to violet in the presence of protein

Question 17

Glucose

Answer 17

Is a reducing sugar

Question 18

Glucose is tested for by adding…

Answer 18

Benedict’s solution and heating. It turns from blue to brick red

Question 19

Why do I need food?

Answer 19

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