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Biology A level

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Question:

The importance of fungi and bacteria (mycorrhizae) in nutrient cycles

Author: Eva K 3sq0



Answer:

- Relationship between certain types of fungi + roots of plants - Fungi act like extensions of the plant's roots system + vastly increase SA for absorption of water + minerals - The mycorrhizae acts like a sponge so holds water + minerals in the neighborhood of the roots - Plant now better at resisting drought + takes up inorganic ions more readily - The mycorrhizae plays a part in nutrient cycle by improving the uptake of relatively scarce ions like phosphates ions


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