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[A] : Endomycorrhiza of forest trees con...

[A] : Endomycorrhiza of forest trees contribute to the efficient nutrient cycling in tropical test ecosystems .
[R] : The fungi that form endomycorrhizal association with plants store nutrient ions and make them available to the host plants .

A

If both A and R are true and R is the correct explanation of A

B

If both A and R are true but R is not the correct explanation of A

C

If A is true and R is false

D

If both A and R are false

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Assertion : Endomycorrhiza of forest trees contribute to the efficient nutrient cycling in tropical forest ecosystem. Reason : The fungi that form mycorrhizal associations with plants make nutrient ions available to them.

Make correction wherever you find mistake in spellings/words in the following paragraph/sentences. A. Biofertilisers are a high-cost output but they do not pollute the environment. Acceptability of biofertillisers is also low because they usually produce quick and spectacular results. B. Fungi of mycorrhiza solubilise phosphorus, produce plant growth inhibiting substance and protect host plants from soil nutrients. (C) Biopesticides are those chemical agents that are used for control of weeds. insects and pathogons.

TRUEMAN BIOLOGY-Fungi -ASSERTION AND REASON
  1. [A] : Endomycorrhiza of forest trees contribute to the efficient nutri...

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  2. [A] : Lichens are of considerable ecological imporance as pioneers in ...

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  3. [A] : Bordeaux mixture is an organic fungicide . [R] : Bordeaux mixt...

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  4. [A] : The obligate parasites can live only on dead hosts . [R] : The...

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  5. [A] : Disease reduce the vitality of plants , inhibit their developmen...

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  6. [A] : Lichens are composite organisms . [R] : The fungal component i...

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  7. [A] : Candida is a false yeast . [R] : It lacks ascus formation .

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  8. [A] : Heterotrophs may be free living or symbiotic . [R] : They from...

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  9. [A] : Rusts and smuts are club fungi that parasitize cereal crops . ...

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  10. Assertion : The fungi are widespread in distribution and they even liv...

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  11. [A] : Symbiosis is also furnished by mycorrhiza . [R] : In Mycorrhiz...

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  12. [A] : Phytoalexins are formed as a result of fusion between auxins and...

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  13. [A] : Zygospore fungi produce spores within sporangia . [R] : During...

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  14. [A] : Club fungi reproduce sexually . [R] : In club fungi , dikaryot...

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  15. [A] : The sterile portion of sporangium in Mucor is called columella ....

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  16. [A] : Fungi are thallophyta . [R] : Cell wall of fungi is made up of...

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  17. [A] : Fungi are either saprobes or parasitic . [R] : Fungi posses ha...

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  18. [A] : Rhizopus contains two types of hyphae . [R] : The unbranched h...

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  19. [A] : Puccinia graminis is autoecious . [R] : It complete its life c...

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  20. [A] : Schizosaccharomyces is also called the fission yeast . [R] : S...

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