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Biology · 2026 · 1 mark
CBSE 2026 · Region 2 · Set 1 · Q14
Assertion (A): Microbes are used for commercial production of alcohol and beverages. Reason (R): Yeast converts glucose into ethanol and carbon…
Assertion (A) : Microbes are used for commercial production of alcohol and beverages.
Reason (R) : Yeast converts glucose into ethanol and carbon dioxide during fermentation.
Official answer
(A)
Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation for Assertion (A).
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CBSE Class 12 Biology past-paper question from the 2026 board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.