unit 1

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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


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