Science revision 0.0 / 5 ? SciencePolymersGCSEAQA Created by: harrietsgraceCreated on: 15-06-17 09:29 Fertilisers contain mineral such as …? Nitrates,Phosphates,Potassium,Magnesium compounds 1 of 19 Poor plant growth may be caused by …? A lack of one or more minerals in the soil 2 of 19 Dissolved minerals are absorbed by …? The roots from the soil 3 of 19 Why do plants require nitrates? For protein, which are needed for cell growth 4 of 19 Why do plants require phosphates? For respiration and growth 5 of 19 Why do plants require potassium compounds? For respiration and photosynthesis 6 of 19 Why do plants require magnesium compounds? For photosynthesis 7 of 19 What would a lack of nitrate cause? Poor growth and yellow leaves 8 of 19 What would a lack of phosphate cause? Poor root growth and discoloured leaves 9 of 19 What would a lack of potassium cause? Poor flower and fruit growth, and discoloured leaves 10 of 19 What would a lack of magnesium cause? Yellow leaves 11 of 19 Where are minerals usually present? In soil, in quite low concentration 12 of 19 Why is nitrogen required? To make amino acids and proteins 13 of 19 Why is phosphorus required? To make DNA and cell membranes 14 of 19 Why is potassium required? To help enzymes (in photosynthesis and respiration) 15 of 19 Why is magnesium required? To make chlorophyll 16 of 19 How are minerals taken up into root hair cells? By active transport 17 of 19 Describe active transport Active transport can move substances from low concentration to high concentration 18 of 19 Active transport uses energy from …? Respiration 19 of 19
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