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Botany - Plant - Growth and Development

Practise 36 AIIMS previous year questions on Plant - Growth and Development, compiled from papers spanning 2001 to 2019. Each question is pulled directly from the actual exam paper it appeared in, so you're practising in the exact style and difficulty AIIMS tests.

Plant - Growth and Development has been asked in 18 of the 19 years of AIIMS papers analysed (2001–2019), with 36 questions in all. 50% of them were easy, 28% moderate and 22% tough. Most of its questions came from 2019, with 5 questions that year. In the last three years (2017–2019) it had 8 questions across 5 papers, about 1.6 per paper.

The chapter's 7 topics are not weighted equally: Plant Growth Regulators (21 questions, 58%), Vernalisation (5 questions, 14%), and Growth (4 questions, 11%) have been asked the most. Plant Growth Regulators has produced the most tough questions (3).

  1. 1Which hormone inhibits morphogenesis?26 May, 2019Plant Growth Regulators
  2. 2Assertion : Gibberellic acid increases length of grape stalks. Reason : Ethophon hastens fruit ripening in tomato and apple.26 May, 2019Plant Growth Regulators
  3. 3Which of the following sets does not include all natural plant growth regulators?25 May, 2019Plant Growth Regulators
  4. 4Read the given statements and identify the PGRs and . induces accumulation of salts inside the cells. Y promotes rapid elongation of leaf ba25 May, 2019Plant Growth Regulators
  5. 5Assertion : In vernalisation, flowering is induced by low temperature. Reason : ABA is growth inhibiting hormone.25 May, 2019Vernalisation
  6. 6Which of the following is not a bioassay for cytokinins?27 May, 2018Plant Growth Regulators
  7. 7Which among the following are auxins?26 May, 2018Plant Growth Regulators
  8. 8Identify the incorrect statement about growth regulator.2017Plant Growth Regulators
  9. 9One hormone hastens maturity period in juvenile conifers, a second hormone controls xylem differentiation, while the third hormone increases2016Plant Growth Regulators
  10. 10Assertion : Storage of seeds at low temperature is possible. Reason : Respiration and enzymatic activity of seeds are very high at low tempe2016Vernalisation
  11. 11Gibberellins can promote seed germination because of their influence on2015Plant Growth Regulators
  12. 12Apomixis is2015Seed Germination
  13. 13Assertion : Plant growth regulators (PGRs) are very important for plant growth and development. Reason : Auxins do not induce flowering in g2015Plant Growth Regulators
  14. 14Assertion : A correct concentration of auxin and cytokinin is required for the development of root and shoot in a callus. Reason : When the 2015Plant Growth Regulators
  15. 15Vernalisation is subjected to plants growing in2014Vernalisation
  16. 16Which of the following plant growth regulators (PGRs) promotes root initiation, flowering and induced parthenocarpy?2013Plant Growth Regulators
  17. 17Assertion : On plotting the length of the root against time, a linear curve is obtained. Reason : An elongating root exemplifies arithmetic 2013Growth
  18. 18Abscisic acid is known as the stress hormone because it2012Plant Growth Regulators
  19. 19Bacteria, fungi, lower plants survive in adverse conditions by2011Seed Dormancy
  20. 20What are labelled phases and in given sigmoidal growth curve?2011Growth
  21. 21Assertion : Plant growth as a whole is indefinite. Reason : Plants retain the capacity of continuous growth throughout their life.2011Growth
  22. 22Refer the given figures on photoperiodism and select the correct option.2010Photoperiodism
  23. 23Assertion : Cytokinins increases shelf life of fruits and vegetables. Reason : Cytokinins induce cell division.2009Plant Growth Regulators
  24. 24Phytohormones are2008Plant Growth Regulators
  25. 25Assertion : Vernalization is acceleration of subsquent flowering by low temperature treatment. Reason : Site of vernalization is apical meri2007Vernalisation
  26. 26Avena curvature test is a bioassay for examining the activity of2006Plant Growth Regulators
  27. 27In an experiment freshly hatched larvae of an insect (Khapra beetle) were reared on a basal diet (complete diet without cholesterol) with in2005Growth
  28. 28Gibberellins can promote seed germination because of their influence on2005Plant Growth Regulators
  29. 29Assertion : Senescence is the time when age associated defects are manifested. Reason : Certain genes may be undergoing sequential switching2005Senescence
  30. 30Pruning of plants promotes branching because the axillary buds get sensitized to2004Plant Growth Regulators
  31. 31Assertion : Photomodulation of flowering is a phytochrome - regulated process. Reason : Active form of phytochrome (Pfr) directly induces fl2004Plant Growth Regulators
  32. 32Bud dormancy is induced by2002Plant Growth Regulators
  33. 33Assertion : Death is regarded as the most important regulatory process on earth. Reason : It avoids overcrowding, caused by continuous repro2002Senescence
  34. 34Which of the following pesticides is an acetylcho linesterase inhibitor?2001Plant Growth Regulators
  35. 35Induction of flowering by low temperature in plants is2001Vernalisation
  36. 36Which of the following statements is correct regarding short day plants (SDPs)?2001Photoperiodism

Frequently Asked Questions

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

This chapter includes 36 questions compiled from AIIMS papers spanning 2001 to 2019.

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

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

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

Plant - Growth and Development has appeared in 18 of the 19 years of AIIMS papers covered here, with 36 questions across 20 papers - about 2 per paper it appears in.

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

Of the 36 questions analysed for this chapter, 50% are easy, 28% moderate and 22% tough. 2019 had the most, with 5 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 - 21 questions (58%)
  • Vernalisation - 5 questions (14%)
  • Growth - 4 questions (11%)
  • Plant Growth Regulators has produced the most tough questions (3).
6.Is Plant - Growth and Development's weightage in AIIMS going up or down?

Across all 20 papers analysed, Plant - Growth and Development has averaged about 1.8 questions per paper. In the last three years (2017–2019), that average has stayed about the same, at about 1.6 questions per paper. Use the year-wise numbers on this page for the exact trend before you decide how much time to give it.