minerals

Question 1

important minerals

what are they?

Answer 1

1. calcium (Ca)
2. potassium (K)
3. iodine (I2)
4. sodium (Na)
5. Iron (Fe)
6. magnesium (Mg)

Question 2

calcium

Answer 2

1. sources
   - milk, fish, leafy vegetables
2. functions
   - component of bones and teeth
   - muscle contraction

Question 3

potassium

Answer 3

1. sources
   - fruit, vegetables, grains
2. functions
   - relaxing muscles
   - nervous system

Question 4

sodium

Answer 4

1. sources
   - table salts, many food types
2. functions
   - muscle contracton
   - regulates osmosis

Question 5

iodine

Answer 5

1. sources
   - sea food, iodised salt
2. functions
   - breaking down of food (metabolism)

Question 6

iron

Answer 6

1. sources
   - meat,, fish, liver
2. functions
   - carrier of of 02 n blood

Question 7

magnesium

Answer 7

1. sources
   - wheat germs, nuts, raisins
2. functions
   - muscle functioning
   - nerve impluses