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Class 11 Biology: Plant Growth and Development
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MCQs on plants growth and development, differentiation, dedifferentiation and redifferentiation, growth regulators in plants, photoperiodism and vernalisation.

Class 11 Biology: Plant Growth and Development
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25 Questions

1. One single maize root apical meristem can give rise to how many new cells per hour?
2. The hormone responsible for apical dominance is________
3. What is the growth rate?
4. Which of the following plants is a polycarpic plant?
5. The root and shoot apex of a plant represent which phase of the growth?
6. Cells of which of the following plant organs do not undergo differentiation?
7. All the cells of the plant are descendants of which of the following?
8. Phototropic and geotropic movements are linked to________
9. The growth rate is generally of how many types?
10. The hormone responsible for flowering is ________
11. Which of the following meristem is responsible for the primary growth of the plant?
12. Which of the following phenomena includes all the changes undergone by a living plant from seed emergence to death?
13. Which of the following kinds of growth is exhibited by plants?
14. Which of the following curves is a characteristic of all living organisms?
15. What is the first step in the process of plant growth?
16. Which of the crops doesn't show vernalisation?
17. Which of the following is not the characteristics of the cells of the phase of elongation?
18. Which of the following hormone promotes bolting?
19. What is differentiation?
20. Unlimited growth of the plant, is due to the presence of which of the following?
21. Which zone lies next to the phase of elongation?
22. The source of hormone ethylene is________
23. Which of the following is essential for the growth of the plants?
24. Which of the following is a characteristic of the cells of the maturation zone?
25. Richmond Lang effect is linked to ________

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