Section 3: Minerals Needed for Healthy Growth 0.0 / 5 ? BiologyCells, tissues and organsIGCSEEdexcel Created by: BethanyCreated on: 09-04-19 13:21 Mineral Ions Plants need certain elements from mineral ions in the soil to produce important compounds If they don't get enough of these minerals, they suffer deficiency symptoms They need nitrates, phosphates, potassium and small amounts of magnesium 1 of 5 Nitrates Nitrates contain nitrogen used to make amino acids and proteins, which are needed for cell growth If a plant doesn't have enough nitrates, it will have stunted growth and the older leaves will turn yellow 2 of 5 Phosphates Phosphates contain phosphorus used for making DNA and cell membranes They're needed for respiration and growth Plants without enough phosphate have poor root growth and older leaves will turn purple 3 of 5 Potassium Potassium is used to help the enzymes involved in photosynthesis and respiration Plants without enough potassium will have poor flower growth, poor fruit growth, and discoloured leaves 4 of 5 Magnesium Magnesium is one of the most significant but needed in much smaller quantities It is used to make chlorophyll needed for photosynthesis Plants without enough magnesium will have yellow leaves 5 of 5
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