Balanced Diet

Question 1

Function of carbohydrates

Answer 1

Provides energy

Question 2

Function of proteins

Answer 2

Growth of cell and tissue repair

Question 3

Functions of lipids

Answer 3

Insulation, protection of organs, source of energy

Question 4

Vitamin A function

Answer 4

Makes a chemical which works in the eye

Question 5

Vitamin A deficiency

Answer 5

Night blindness

Question 6

Vitamin C function

Answer 6

Helps join cells together to make tissues

Question 7

Vitamin C deficiency

Answer 7

Scurvy

Question 8

Vitamin D function

Answer 8

Helps bones absorb calcium

Question 9

Vitamin D deficiency

Answer 9

Rickets

Question 10

Calcium function

Answer 10

Strengthens bones and teeth

Question 11

Calcium deficiency

Answer 11

Rickets

Question 12

Iron function

Answer 12

Used to make haemoglobin in red blood cells

Question 13

Iron deficiency

Answer 13

Anaemia

Question 14

Dietary requirements for athletes and pregnant women

Answer 14

Require a higher energy intake for more respiration

Question 15

Dietary requirements for children

Answer 15

Calcium and vitamin D are very important as they are still growing and their bones are developing

Question 16

Dietary requirement for women

Answer 16

Require more iron than men as they loose excess blood during periods

Question 17

How to measure energy content in food

Answer 17

1. Measure the mass of the item
2. Burn it completely, using the heat energy to heat a known volume of water in a boiling tube
3. Measure the increase in temperature of the water
4. apply the formula:
   energy released from food per gram = mass of water x temperature rise x 4.2 / mass of food sample