Question

Mycorrhiza is correctly described as (a) parasitic association between roots and some fungi (b) symbiotic relationship...

Mycorrhiza is correctly described as

(a) parasitic association between roots and some fungi

(b) symbiotic relationship between fungi and roots of some higher plants

(c) symbiosis of algae and fungi

(d) relation of ants with the stem of some trees.

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Answer #1

b) symbiotic relationship between fungi and roots of some higher plants.

In this symbiotic situation the fungus remains inside the plant root and the association is generally mutualistic. Fungus in mycorrhiza benefited as they are provided with sugars which is produced by the plant by photosynthesis. On the other hand plants are benefitted by the association as they use fungus to absorb water and nutrients from soil . The hyphae of fungus can absorb water and nutrients more efficiently rather than the plant roots.

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