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Plant Growth & Development: NEET Biology Previous Year Questions

58 previous year questions from Plant Growth & Development. Here are the 25 most important ones; open any question for the correct answer and a full step-by-step solution.

  1. 1.Through their effect on plant growth regulators, what do the temperature and light control in the plants?
  2. 2.Dr F. Went noted that if coleoptiles tips were removed and placed on agar for one hour, the agar would produce a bending when placed on one side of freshly cut coleoptile…
  3. 3.Which one of the following growth regulators is known as ‘stress hormone’?
  4. 4.Senescence as an active developmental cellular process in the growth and functioning of a flowering plant, is indicated in :-
  5. 5.Name the plant growth regulator which upon spraying on sugarcane crop, increases the length of stem, thus increasing the yield of sugarcane crop.
  6. 6.The site of perception of light in plants during photoperiodism is
  7. 7.Plants follow different pathways in response to environment or phase of life to form different kinds of structures. This ability is called
  8. 8.One of the commonly used plant growth hormone in tea plantation is
  9. 9.Photoperiodism was first characterized in
  10. 10.Which one of the following generally acts as an antagonist to gibberellins?
  11. 11.Dr. 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 side of freshly-cut coleoptile…
  12. 12.The phenomenon by which the undividing parenchyma cells start to divide mitotically during plant tissue culture is called as :
  13. 13.During seed germination its stored food is mobilized by
  14. 14.Production of Cucumber has increased manifold in recent years. Application of which of the following phytohormones has resulted in this increased yield as the hormone is…
  15. 15.The ability of plants to follow different pathways in response to environment leading to formation of different kinds of structures is called :
  16. 16.Which hormone is used to induce immediate stomatal closure in leaves?
  17. 17.Phototropic curvature is the result of uneven distribution of :
  18. 18.Which one of the following plants does not show plasticity?
  19. 19.Spraying of which of the following phytohormone on juvenile conifers helps in hastening the maturity period, that leads to early seed production?
  20. 20.Parthenocarpic tomato fruits can be produced by?
  21. 21.The plant hormone used to destroy weeds in a field is
  22. 22.You are given a tissue with its potential for differentiation in an artificial culture. Which of the following pairs of hormones would you add to the medium to secure sho…
  23. 23.Inhibitory substances in dormant seeds cannot be removed by subjecting seeds to
  24. 24.The living differentiated cells, that lost the capacity to divide anymore, can regain the capacity of division under certain conditions. This phenomenon is termed as :
  25. 25.The process of growth is maximum during :

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