NEET Botany Growth Regulators MCQ Question
Which combination of statements about plant growth regulators is correct?
Plant growth regulators are small molecules that influence growth and differentiation; gibberellic acid is one of them.
Cytokinins are exclusively responsible for promoting root growth; they do not affect other plant parts.
Plant growth regulators can be categorized based on their chemical structure and function; auxins are known for promoting cell elongation.
All plant growth regulators have the same chemical composition and function in the same way across all plant species.
Correct Answer
Detailed Explanation
Statement A is correct as it accurately describes plant growth regulators and mentions gibberellic acid. Option B is incorrect because cytokinins do affect multiple plant parts, not just roots. Option C is correct as it highlights the categorization of growth regulators and auxins' role. Option D is false because plant growth regulators vary in composition and function among different species.
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