Health and balanced diet

Question 1

What’s a healthy diet?

Answer 1

A balanced diet is made up l

Question 2

What do u need for a balanced diet?

Answer 2

Carbohydrates, protein, fat, minerals and vitamins, fiber and water.

Question 3

Carbohydrates-

Answer 3

Consists starch and different types of sugars(glucose)

We need it for energy

Question 4

Examples of carbohydrates

Answer 4

Bread, pasta, rice, cereals.

Question 5

Chemical test for starch

Answer 5

Iodine solution-
Add 2 drops of yellow iodine solution
Yellow/brown🟨🟫➡️blue/black🟦⬛️ (if starch is present)

Question 6

Chemical test for glucose

Answer 6

Benedict’s solution
Add a few drops of bs to food solution
Heat in water bath until it boils
If there is a lot of sugar➡️red🟥
Medium sugar➡️ orange 🟧
Little sugar ➡️ green🟩

Question 7

Fat-

Answer 7

Fat are made from fatty acids and glycerol.

We need fatty acids for a store of energy and to make cell membranes and for warmth.

Question 8

Chemical tests for fat

Answer 8

Grease proof paper
Out the fat on GPP then wait
If there is fat then the GPP will become transparent.

Question 9

Water

Answer 9

Water is very important Because
Outer main plasma is mainly water
Water is in sweat then lets us cool down
Chemical reactions in our cells take place in water.
Waste products are removed from our bodies in water.

Question 10

Vitamins and minerals

Answer 10

We only need these in small amounts but they are essential for good health
Many vitamin and minerals are found in food, vegetables and cereals

Question 11

What happens if u don’t eat enough of vitamin d?

And why is it good?

Answer 11

Skin cracks and gum bleed (scurvy)

It is good for keeping the skin strong and supple.

Question 12

What happens if u don’t eat enough of vitamin D?

Why is it important for u?

Answer 12

Bones stay soft without it (rickets)

Helps bones harden in children.

Question 13

What happens if u don’t eat enough vitamin A?

Why is it important?

Answer 13

U can’t see at night

If u eat it u can see better at night.

Question 14

Protein-

Answer 14

Key parts of your body cells are mostly made of proteins
Proteins are made up of lots of amino acids
We need protein to repair and replace damaged cells or to make new cells during growth

Question 15

Chemical tests for protein

Answer 15

Biuret test
Add some copper sulphate to the food solution
Add sodium hydroxide to the solution
If protein is present, the solution gradually turns 🟪purple

Question 16

Fibre-

Answer 16

Fiber comes from plants
Fiber is actually not digested it is just keeps moving smoothly through your system
It prevents constipation