Class 11 · Biological Classification

Phycobiont & Mycobiont in Lichens — NEET Biology

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What do the terms phycobiont and mycobiont signify?

NCERT Biology · Class 11 · Chapter 2 · Paragraph 65
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Assertion (A): Lichen components have specific scientific names based on their nature. Reason (R): The fungal component is called phycobiont while the algal component is called mycobiont.

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Correct answer: C If assertion is true but reason is false.

NCERT confirms lichen components have specific names (Assertion true). However, NCERT states “The algal component is known as phycobiont and fungal component as mycobiont.” The Reason swaps these terms - the fungal component is mycobiont (not phycobiont) and the algal component is phycobiont (not mycobiont). This etymology reversal creates a highly confusing false statement.

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What do the terms phycobiont and mycobiont signify?
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Biological Classification, Class 11 NCERT Biology.

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