CBSE 2025 · Region 1 · Set 1 · Q15 · 1 mark
Assertion (A) : A bioreactor provides the optimal conditions for achieving the desired product by providing optimum growth conditions.
Reason (R) : The most commonly used bioreactors are of stirring type.
Official answer
From CBSE’s own marking scheme for this paper.
(B)
Both (A) and (R) are true, but (R) is not the correct explanation of (A).
Biotechnology : Principles and ProcessesPrinciples of BiotechnologyUnderstandassertion_reasonmedium
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CBSE Class 12 Biology past-paper question from the 2025board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.