Jump to a section

Botany - Plant - Growth and Development

Practise 83 NEET previous year questions on Plant - Growth and Development, compiled from papers spanning 2002 to 2026. Each question is pulled directly from the actual exam paper it appeared in, so you're practising in the exact style and difficulty NEET tests.

Plant - Growth and Development has been asked in 22 of the 39 years of NEET papers analysed (1988–2026), with 83 questions in all. 61% of them were easy, 36% moderate and 2% tough. Most of its questions came from 2026, with 6 questions that year. In the last three years (2024–2026) it had 13 questions across 13 papers, about 1 per paper.

The chapter's 8 topics are not weighted equally: Plant Growth Regulators (51 questions, 61%), Growth (16 questions, 19%), and Photoperiodism (8 questions, 10%) have been asked the most. Plant Growth Regulators has also led over the last five years, with 17 questions. Plant Growth Regulators has produced the most tough questions (2).

  1. 1Which one of the following is not a characteristic of plant cells in the phase of elongation ?2026 (Cancelled)Growth
  2. 2Match List I with List II : List I (Growth Regulator) List II (Function/Effect) A. -D I. Brewing industry B. II. Stimulation of stomatal clo2026 (Cancelled)Plant Growth Regulators
  3. 3Heterophyllous development in response to environment is an example of which of the following phenomena ?2026 (Cancelled)Growth
  4. 4Which of the following plant growth regulators promotes internode elongation prior to flowering in cabbage ?2026 (Re-NEET)Plant Growth Regulators
  5. 5Which of the following plant growth regulators is used as herbicide ?2026 (Re-NEET)Plant Growth Regulators
  6. 6Length of the stem at time 0 is cm. The arithmetic growth rate is cm per day. What is the length of the stem at the end of the day ?2026 (Re-NEET)Growth — Characteristics and Phases
  7. 7Which one of the following phytohormones promotes nutrient mobilization which helps in the delay of leaf senescence in plants?2025Plant Growth Regulators
  8. 8Read the following statements on plant growth and development. (A) Parthenocarpy can be induced by auxins. (B) Plant growth regulators can b2025Plant Growth Regulators
  9. 9Auxin is used by gardeners to prepare weed-free lawns. But no damage is caused to grass as auxin2024Plant Growth Regulators
  10. 10Spraying sugarcane crop with which of the following plant growth regulators, increases the length of stem, thus, increasing the yield?2024Plant Growth Regulators
  11. 11Match List-I with List-II : {array}{lll} & List-I & & List-II \ .& Abscisic acid & I.& Promotes female flowers in cucumber \ .& Ethylene & I2024 (Re-NEET)Plant Growth Regulators
  12. 12F. Skoog observed that callus proliferated from the internodal segments of tobacco stem when auxin was supplied with one of the following ex2024 (Re-NEET)Plant Growth Regulators
  13. 13Given below are some statements about plant growth regulators. A. All GAs are acidic in nature. B. Auxins are antagonists to GAs. C. Zeatin 2024 (Re-NEET)Plant Growth Regulators
  14. 14Which hormone promotes internode / petiole elongation in deep water rice?2023 (All India)Plant Growth Regulators
  15. 15Spraying of which of the following phytohormone on juvenile conifers helps in hastening the maturity period, that leads to early seed produc2023 (All India)Plant Growth Regulators
  16. 16In tissue culture experiments, leaf mesophyll cells are put in a culture medium to form callus. This phenomenon may be called as:2023 (All India)Growth
  17. 17The phenomenon which is influenced by auxin and also played a major role in its discovery :2023 (Manipur)Plant Growth Regulators
  18. 18Match List-I with List-II Choose the correct answer from the options given below:2023 (Manipur)Plant Growth Regulators
  19. 19Which of the following statements is not correct?2023 (Manipur)Growth
  20. 20The gaseous plant growth regulator is used in plants to:2022 (Phase 1)Plant Growth Regulators
  21. 21Which one of the following plants does not show plasticity?2022 (Phase 1)Growth
  22. 22Production of Cucumber has increased manifold in recent years. Application of which of the following phytohormones has resulted in this incr2022 (Phase 1)Plant Growth Regulators
  23. 23Which of the following growth regulators is an adenine derivative?2022 (Phase 2)Plant Growth Regulators
  24. 24The ability of plants to follow different pathways in response to environment leading to formation of different kinds of structures is calle2022 (Phase 2)Growth
  25. 25Plants follow different pathways in response to environment or phases of life to form different kinds of structures. This ability is called:2021Growth
  26. 26The site of perception of light in plants during photoperiodism is:2021Photoperiodism
  27. 27The plant hormone used to destroy weeds in a field is:2021Plant Growth Regulators
  28. 28Which of the following is not an inhibitory substance governing seed dormancy?2020 (Phase 1)Plant Growth Regulators
  29. 29Name the plant growth regulator which upon spraying on sugarcane crop, increases the length of stem, thus increasing the yield of sugarcane 2020 (Phase 1)Plant Growth Regulators
  30. 30The process of growth is maximum during2020 (Phase 1)Growth
  31. 31Who coined the term Kinetin ?2020 (Phase 2)Plant Growth Regulators
  32. 32Inhibitory substances in dormant seeds cannot be removed by subjecting seeds to:2020 (Phase 2)Plant Growth Regulators
  33. 33Match the following concerning the activity/function and the phytohormone involved:- (a) Fruit ripener (i) Abscisic acid (b) Herbicide (ii) 2020 (Phase 2)Plant Growth Regulators
  34. 34What is the site of perception of photoperiod necessary for induction of flowering in plants?2019 (All India)Photoperiodism
  35. 35It takes a very long time for pineapple plants to produce flowers. Which combination of hormones can be applied to artificially induce flowe2019 (All India)Plant Growth Regulators
  36. 36Removal of shoot tips is very useful technique to boost the production of tea leaves. This is because2019 (Odisha)Plant Growth Regulators
  37. 37In order to increase the yield of sugarcane crop, which of the following plant growth regulators should be sprayed?2019 (Odisha)Plant Growth Regulators
  38. 38Fruit and leaf drop at early stages can be prevented by the application of2017Plant Growth Regulators
  39. 39The Avena curvature is used for bioassay of:2016 (Phase 1)Plant Growth Regulators
  40. 40You are given tissue with its potential for differentiation in artificial culture. Which of the following pairs of hormones would you add to2016 (Phase 2)Plant Growth Regulators
  41. 41What causes a green plant exposed to the light on only one side, to bend toward the source of light as it grows?2015 (Phase 1)Photoperiodism
  42. 42Typical growth curve in plants is:2015 (Phase 1)Growth
  43. 43Auxin can be bio assayed by:2015 (Phase 2)Plant Growth Regulators
  44. 44Dr F. Went noted that if coleoptile tips were removed and placed on agar for one hour, the agar would produce a bending when placed on one s2014Plant Growth Regulators
  45. 45A few normal seedlings of tomato were kept in a dark room. After a few days, they were found to have become white-colored like albinos, Whic2014Seed Germination
  46. 46Which one of the following growth regulators is known as stress hormone?2014Plant Growth Regulators
  47. 47During seed germination its stored food is mobilised by2013 (All India)Plant Growth Regulators
  48. 48Tissue culture technique can produce infinite number or new plants from a small parental tissue. The economic importance of the technique is2013 (Karnataka)Growth
  49. 49The pineapple which under natural condition is difficult to blossom has been made to produce fruits throughout the year by application of:2013 (Karnataka)Plant Growth Regulators
  50. 50Through their effect on plant growth regulators, what do the temperature and light control in the plants?2012 (Mains)Plant Growth Regulators

Frequently Asked Questions

1.How many questions are available for Plant - Growth and Development?

This chapter includes 83 questions compiled from NEET papers spanning 2002 to 2026.

2.Are these questions only from NEET, or from other exams too?

These are NEET questions specifically for the Plant - Growth and Development chapter. Questions from other exams like AIIMS or JIPMER are organised separately under their respective exam sections.

3.Is Plant - Growth and Development an important chapter for NEET Botany?

Plant - Growth and Development has appeared in 22 of the 25 years of NEET papers covered here, with 83 questions across 34 papers - about 2 per paper it appears in.

4.What is the difficulty level of Plant - Growth and Development questions in NEET?

Of the 83 questions analysed for this chapter, 61% are easy, 36% moderate and 2% tough. 2026 had the most, with 6 questions.

5.Which topics in Plant - Growth and Development should I focus on?

These topics have carried the most weightage in Plant - Growth and Development:

  • Plant Growth Regulators - 51 questions (61%)
  • Growth - 16 questions (19%)
  • Photoperiodism - 8 questions (10%)
  • Plant Growth Regulators has produced the most tough questions (2).
6.Is Plant - Growth and Development's weightage in NEET going up or down?

Across all 34 papers analysed, Plant - Growth and Development has averaged about 2.4 questions per paper. In the last three years (2024–2026), that average has fallen, at about 1.0 questions per paper. Use the year-wise numbers on this page for the exact trend before you decide how much time to give it.