Minerals

Question 1

Sources calcium

Answer 1

Milk
Cheese
Yoghurt
Green leafy veg

Question 2

Function calcium

Answer 2

Formation strong bones and teeth
Assists blood clotting
AiDs normal muscle contraction

Question 3

Effects of calcium deficiency

Answer 3

Bone disease and tooth decay
Slow blood clotting
Muscles fail to relax after contraction causing cramps

Question 4

Rda calcium

Answer 4

Adult 800mg

Teen 1200mg

Question 5

Factors assisting calcium absorption

Answer 5

Vitamin d (stimulates production, binds to protein)
Hormone parathormone controls calcium levels in body
Hormone oestrogen promotes calcium absorption
Phosphorus combines with calcium creating calcium phosphate easier to absorb
Acidic environment promotes absorption

Question 6

Factors hindering calcium absorption

Answer 6

Tannins in tea and coffee bind with calcium, inhibiting absorption
Excess fat binds and is un absorb
Burning excess protein produces sulfate which binds to calcium and is excreted 5rpugh Urine
Phytic and oxalic acid combine inhibit absorption

Question 7

Example of food with phytic acid

Answer 7

Wholegrain bread

Question 8

Example of food with oxalic acid

Answer 8

Rhubarb

Question 9

Two types of iron

Answer 9

Haem (ferrous)
Non haem (ferric)

Question 10

Which type of iron is more easily absorbed

Answer 10

Haem

Question 11

Sources of haem iron

Answer 11

Red meat

Offal

Question 12

Function of iron

Answer 12

Makes red blood cells and forms haemoglobin
Forms myoglobin (oxygen to muscles)
Releases energy from food

Question 13

Deficiency disease of iron

Answer 13

Anemia
Muscle fatigue
Lesscenergy

Question 14

Non haem sources

Answer 14

Cereals
Pulses
Green leafy veg

Question 15

Rda iron

Answer 15

14mg

Question 16

Factors assisting iron absorption

Answer 16

Consuming haem and non haem together
Vitamin c chemically changes non haem to haem
Hydrochloric acid chemically changes non haem to haem

Question 17

Factors hindering absorption

Answer 17

Tannins
Phytic acud
Oxalic acid

Question 18

Examples of trace minerals

Answer 18

Zinc
Iodine
Sodium
Potassium

Question 19

Osteomalacia is caused by deficiency of

Answer 19

Calcium

Question 20

Goitre is caused by deficiency of

Answer 20

Iodine

Question 21

Dry flaky skin is caused by deficiency of

Answer 21

Zinc

Question 22

Function of sodium

Answer 22

Maintain water levels

healthy nervous
Healthy muscles