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Biology

Plant Growth and Development

A Biology chapter of the NEET syllabus, and how to practise it for the computer-based exam.

Exam rules change between cycles. Confirm dates, syllabus and pattern against NTA's official site. We are not NTA.

Weightage: what the paper actually did

Plant Growth and Development carried 6 questions in the NEET 2026 paper. One paper is a data point, not a destiny: NTA moves weight between chapters every cycle, which is why the weightage tables deserve care. The stable facts are the paper's shape: 180 questions, 720 marks, +4 right, −1 wrong.

Sample PYQs from this chapter

Real questions NTA asked from Plant Growth and Development, with the answer and the working. Try before you peek.

Question 1 · NEET 2026

Which one of the following is not a characteristic of plant cells in the phase of elongation?
  1. A.New cell wall deposition
  2. B.Cell enlargement
  3. C.Increased vacuolation
  4. D.Large conspicuous nuclei
Answer and explanation

Answer: D

The elongation phase is characterised by increased vacuolation, cell enlargement and deposition of new cell wall material. A large, conspicuous nucleus with dense cytoplasm is a feature of the meristematic (dividing) phase, not the elongation phase, so it is the exception.

Question 2 · NEET 2020

Which of the following is not an inhibitory substance governing seed dormancy?
  1. A.Abscisic acid
  2. B.Phenolic acid
  3. C.Para-ascorbic acid
  4. D.Gibberellic acid
Answer and explanation

Answer: D

Gibberellic acid is a plant hormone that promotes seed germination, not dormancy. Abscisic acid, phenolic acid, and para-ascorbic acid are known to inhibit seed germination and maintain dormancy. Chapter: Plant Growth and Development.

How to practise Plant Growth and Development

Chapter by chapter, against real past-paper questions, on a screen: NEET is computer based from 2027. Read the chapter once, then attempt its PYQs until your accuracy stops climbing, and let the wrong answers tell you which lines to reread. If the chapter keeps refusing to stick, that has its own guide. There is also a free NEET mini mock with answers.

Nearby Biology chapters

Questions

How many questions did Plant Growth and Development have in NEET 2026?

Plant Growth and Development carried 6 questions in the NEET 2026 paper. Weightage shifts between cycles, so treat it as a probability, not a promise.

Where can I practise Plant Growth and Development PYQs for NEET?

Explore available chapter-wise NEET practice in BrainIt, free until the 2027 exam. Review explanations and track chapter accuracy to guide your revision. Sample questions from this chapter are on this page.

Is Plant Growth and Development important for NEET 2027?

It is part of the Biology syllabus the paper draws from, and NEET 2027 is computer based, so practise it on a screen. Your own accuracy in the chapter matters more than any weightage table: a heavy chapter you already score well on needs less time than a light one you keep missing.

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