Class 11 · Plant Growth and Development

Plant Growth Regulators: Roles & Interactions — NEET Biology

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📖 NCERT Source

We may summarise that for any and every phase of growth, differentiation and development of plants, one or the other PGRs has some role to play. Such roles could be complimentary or antagonistic. These could be individualistic or synergistic.

NCERT Biology · Class 11 · Chapter 13 · Paragraph 48
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QuestionPractice Question

What kind of interaction is possible between multiple PGRs in a plant process?

📖 Solution & NCERT Explanation
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Correct answer: C Either complimentary or antagonistic

PGR interactions can vary depending on the developmental context.

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What does NCERT say about We may summarise that?
We may summarise that for any and every phase of growth, differentiation and development of plants, one or the other PGRs has some role to play. Such roles could be complimentary or antagonistic.
Has this concept appeared in NEET?
Practice this NCERT concept with questions on MedicNEET.
Which chapter is this from?
Plant Growth and Development, Class 11 NCERT Biology.

Through deep analysis of NEET and NTA, 176 of the 180 ReNEET 2026 (June 21) questions were already in the MedicNEET question bank before the exam.

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