unit 1

inoganic ions

magnesium (mg2+) is in  chlorophyll, and is therfore needed and essential for photosynthesis. plants without magnesium in there soil cannout make chlorophyll and the leafs turn yellow. - this is called chlorosis. plants cannot grow due to lack of glucose. mammels need magnesium for their bones.

iron (fe2+) is in haemoglobin , which transports oxygen i  red blood…