Class 11 · Plant Growth and Development

Single Parameters Cannot Define Plant Growth — NEET Biology

📚 Practice Concept
📖 NCERT Source

Why is not any one parameter good enough to demonstrate growth throughout the life of a flowering plant?

NCERT Biology · Class 11 · Chapter 13 · Paragraph 55
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Assertion (A): Plants retain the capacity for unlimited growth throughout their life. Reason (R): Plants show open form of growth where new cells are always added by meristem activity.

📖 Solution & NCERT Explanation
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Correct answer: A If both assertion and reason are true and the reason is the correct explanation of the assertion.

Both statements are exact NCERT quotes. NCERT states “Plant growth is unique because plants retain the capacity for unlimited growth throughout their life” and defines open growth as “new cells are always being added to the plant body by the activity of the meristem.” The Reason explains WHY plants have unlimited growth capacity - through the open form of growth mechanism.

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What does NCERT say about Why not any one?
Why is not any one parameter good enough to demonstrate growth throughout the life of a flowering plant?
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.

176/180
of the ReNEET 2026 paper (all subjects) was already in the MedicNEET question bank

MedicNEET's Biology question bank is built from the same NCERT lines NTA picks repeatedly. Not random MCQs — questions crafted exactly like NTA crafts them.

176 of 180 ReNEET 2026 questions traced to MedicNEET17,000+ Biology questionsHindi + English
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