B4 - Plants Need Minerals

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What minerals do plants need?
Nitrates, phosphates, potassium compounds, magnesium compounds
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What is nitrogen used for?
Producing amino acids, which combine to form a variety of proteins.
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What is phosphorus used for?
Used to make DNA, which contains the plant's genetic code, and cell membranes
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What is potassium used for?
To help enzyme action in photosynthesis and respiration; enzymes speed up chemical reactions.
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What is magnesium used for?
Used to make chlorophyll, which is essential for photosynthesis
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What does lack of nitrate cause?
Poor growth and yellow leaves
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What does lack of phosphate cause?
Poor root growth and discoloured leaves
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What does lack of potassium cause?
Poor flower and root growth and discoloured leaves
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What does lack of magnesium cause?
Yellow leaves
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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
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What does active transport enable?
Minerals present in the soil only in low concentrations, to enter root hairs already containing higher amounts of minerals
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What does this require?
Energy from respiration
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Other cards in this set

Card 2

Front

What is nitrogen used for?

Back

Producing amino acids, which combine to form a variety of proteins.

Card 3

Front

What is phosphorus used for?

Back

Preview of the front of card 3

Card 4

Front

What is potassium used for?

Back

Preview of the front of card 4

Card 5

Front

What is magnesium used for?

Back

Preview of the front of card 5
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