Inorganic ion
does not contain carbon
Magnesium
Important part of chlorophyll Yellow indicates a deficiency Mammals need magnesium for healthy bones
Iron
Needed in haemoglobinCarries oxygenLack of iron in the human diet leads of anaemia
Phosphate
Used for making nucleotides (made of a base, sugar and a phosphate)
Calcium
Important component in strengthening tissues such as bones, teeth and plant cell walls
Nitrades
Nitrogen derived needed for making nucleotides