B4 - Plants Need Minerals 0.0 / 5 ? SciencePlants Need MineralsGCSEOCR Created by: kaliSereneCreated on: 04-06-16 13:13 What minerals do plants need? Nitrates, phosphates, potassium compounds, magnesium compounds 1 of 12 What is nitrogen used for? Producing amino acids, which combine to form a variety of proteins. 2 of 12 What is phosphorus used for? Used to make DNA, which contains the plant's genetic code, and cell membranes 3 of 12 What is potassium used for? To help enzyme action in photosynthesis and respiration; enzymes speed up chemical reactions. 4 of 12 What is magnesium used for? Used to make chlorophyll, which is essential for photosynthesis 5 of 12 What does lack of nitrate cause? Poor growth and yellow leaves 6 of 12 What does lack of phosphate cause? Poor root growth and discoloured leaves 7 of 12 What does lack of potassium cause? Poor flower and root growth and discoloured leaves 8 of 12 What does lack of magnesium cause? Yellow leaves 9 of 12 How are minerals taken from soil into roots? Taken up by root hair cells by active transport. A system of carriers transport selected minerals across the cell membrane 10 of 12 What does active transport enable? Minerals present in the soil only in low concentrations, to enter root hairs already containing higher amounts of minerals 11 of 12 What does this require? Energy from respiration 12 of 12
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