Assertion :Trichonympha is a cellulose-digesting insect- gut zooflagellate. Reason: The protozoan secretes glucosidases which convert cellulose into glucose.

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion.

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Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion.

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Assertion is correct but Reason is incorrect.

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Both Assertion and Reason are incorrect.

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Solution

The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion.
Trichonympha is a cellulose-digesting insect-gut zooflagellate. It uses flagella for locomotion. This zooflagellate occurs as a symbiont in the intestine of termites. Trichonympha secretes cellulose-digesting enzymes b-glucosidases which convert cellulose into glucose. The digested food is shared by the zooflagellates and termite. Without Trichonympha the termites starve and die.

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