Essential minerals are needed to keep plants healthy and growing properly.
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How do plants absorb dissolved minerals in the soil?
through their roots
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Where are the minerals naturally present?
The minerals are naturally present in the soil, although usually in quite low concentrations.
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Why do farmers use fertilisers containing essential minerals eg. NPK?
farmers use fertilisers containing essential minerals e.g. (NPK) to make sure that plants get all the minerals they need to grow
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What is the purpose of the mineral nitrates?
to make proteins for cell growth
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What is the purpose of the mineral potassium compounds?
for respiration and photosynthesis
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What is the purpose of the mineral phospates?
for respiration and cell growth
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What is the purpose of the mineral magnesium?
for photosynthesis
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What will happen if one or more of the essential minerals is missing (deficient) from the soil?
the growth of the plant will be affected.
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How can Experiments can be carried out to see how removing one mineral affects the plants?
This is done by growing plants in a soil-less culture. The minerals can then be carefully controlled and changed.
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What are nitrates used to make?
Nitrates are used to make amino acids that form proteins.
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What are potassium used to help?
Potassium is used to help the enzymes in respiration and photosynthesis.
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What are phosphates used to make?
Phosphates are used to make DNA and cell membranes.
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What is magnesium used to make?
Magnesium is used to make the chlorophyll for photosynthesis.
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What will a lack of nitrates do to a plant?
poor growth and yellow leaves
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What will a lack of potassium do to a plant?
poor flower and fruit growth, discoloured leaves
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What will a lack of phosphates do to a plant?
poor root growth and discoloured leaves
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What will a lack of magnesium do to a plant?
yellow leaves
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What is active transport?
Substances sometimes need to be absorbed from a low to a high concentration area, i.e. against a concentration gradient. This is called active transport
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What does active transport require?
energy from respiration
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How do plants absorb mineral ions through their root hairs?
by active transport
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Other cards in this set
Card 2
Front
How do plants absorb dissolved minerals in the soil?
Back
through their roots
Card 3
Front
Where are the minerals naturally present?
Back
Card 4
Front
Why do farmers use fertilisers containing essential minerals eg. NPK?
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