GCSE Mock April 24

Question 1

Function of vitamin A

Answer 1

• Healthy retina for vision in dim light.
• Help make membranes healthy of the nose, throught, mouth and lungs.
• healthy immune system
• anti oxidant properties ( lower risk of cancer )

Question 2

Sources of vitamin A

Answer 2

• eggs
• oily fish
• liver
• milk
• butter
• cheese
• carrots
• sweet potatoes
• apricots

Question 3

Effects of a vitamin A deficiency

Answer 3

• night blindness
• weak immune system
• dry skin and membranes

Question 4

Chemical names for Vitamin A

Answer 4

Carotene and Retinol

Question 5

Chemical name for Vitamin E

Answer 5

Tocopherol

Question 6

Sources of Vitamin E

Answer 6

• plant oils
• nuts and seeds
• wheat germ (cereals)

Question 7

Function of vitamin E

Answer 7

• Maintains healthy skins and eyes
• strengthen body’s natural defence against illness and infection

Question 8

Effects of a vitamin E deficiency

Answer 8

• difficulty with coordination
• muscle pain
• visual disturbance

Question 9

Sources of Phosphorus

Answer 9

• animal products
• nuts and seeds

Question 10

Function of Phosphorus

Answer 10

• used for growth and repair of body cells and tissues
• when with calcium, it can provide structure and strength to bones and teeth

Question 11

Effects of the deficiency of Phosphorus

Answer 11

• may cause bone disease such as rickets in children
• may cause osteomalacia in adults

Question 12

Chemical name for vitamin B12

Answer 12

Cobalamin

Question 13

Sources of vitamin b12

Answer 13

Animal products such as eggs, poultry and milk

Question 14

Function of vitamin b12

Answer 14

• healthy nerve cells
• works with vitamin b9 to make red blood cells
• helps iron work better in the body

Question 15

Effects of the deficiency of vitamin b12

Answer 15

• can cause emotional changes such as depression or fatigue
• pernicious anaemia accompanied by the degeneration of nerve tracts in the spinal cord

Question 16

Sources of sodium

Answer 16

• salt
• crisps
• ready meals
• bacon
• ham

Question 17

Function of sodium

Answer 17

• Helps control the amount of water in the body.
• helps the body use energy and help control nerves and muscles

Question 18

Effects of a sodium deficiency

Answer 18

• hyponatraemia is a low level of sodium in the blood
  Can cause
• changes to a persons mental state
• headaches
• nausea
• fatigue
• seizures

Question 19

Effects of too much sodium

Answer 19

Can lead to
- high blood pressure
- damage heart and kidneys
- can lead to strokes

Question 20

Chemical name of vitamin K

Answer 20

Naphthoquinones

Question 21

Sources of vitamin K

Answer 21

Peas, cereals, beans, broccoli, spinach

Question 22

Function of vitamin k

Answer 22

Prevents blood clots and helps to heal wounds

Question 23

Effects of a deficiency of vitamin k

Answer 23

• bruising and bleeding

Question 24

Sources of Iron

Answer 24

Red meat
Poultry
Seafood
Beans
Dried fruit

Question 25

Function of iron

Answer 25

To make oxygen carry proteins Production of red blood cells Converting blood sugar into energy Production of enzymes

Question 26

Effects of an iron deficiency

Answer 26

Anaemia Pale skin Tongue swelling Headaches Irregular heartbeat