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Class 11 Biology Chapter 15 Plant Growth And Development Quiz 17 (25 MCQs)

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1. I. C$_{2}$H$_{4}$ promotes leaf senescence II. C$_{2}$H$_{4}$ speeds the ripening of fruitsIII. C$_{2}$H$_{4}$ causes apical hook formationIV. C$_{2}$H$_{4}$ promotes horizontal growth of seedling and swelling of axisV. C$_{2}$H$_{4}$ promotes male flowers in cucumber thereby increasing the yield Which one is false?
2. Proses perkembangan pada tanaman ditunjukkan oleh .....
3. Secondary growth is caused by the activity of .....
4. Under certain conditions regaining the lost capacity of division by living cells is called-
5. Plant that flower only when day length rises above a certain threshold are called?
6. Which of the following statement is wrong about Abscisic acid:
7. Plant roots take water from the soil trough the process of:
8. These is a passive transport which, means no energy is used to make the molecules move, they have a neutral kinetic energy.
9. Vascular cambium and cork cambium are
10. The sprouting of a seed into a plant is called:
11. Which macronutrient is essential for making amino acids, proteins, and vitamins?
12. What is the process called when water is lost from a plant's stomata?
13. An essential element needed in plant development. 78% of our air is made of this gas.
14. It is characterized by substantial increase in ethylene production and respiration coincident with the onset of repining
15. If seedlings do not get enough bright light, they will become .....
16. This is the range of certain wavelengths of light that a plant can use for photosynthetic reactions.
17. A student conducts an experiment on decorative plants. He varies the type of fertilizers that been used for each pot, those are fertilizer A, B, and C. Data about plant height and number of flowers are recorded daily for 21 days. The independent variable of this experiment is .....
18. Andi put 5 green beans into a tube filled with water. He added a little oil to the tube. Then he placed the tube in a dark place. After one week of waiting, the green bean seeds did not germinate. What caused this to happen .....
19. Poppy seeds can be eaten on .....
20. What is the role of flowers in plants?
21. Plants contain ..... in the leaves which convert the energy from sun light, carbon dioxide, and water into sugar, which they use as food.
22. What is the condition in which seeds are prevented from germinating even under favourable conditions?
23. Seeds are produced in plant's .....
24. The process in which plants take in Oxygen and release Carbon dioxide is called:
25. What part of the plant grows first into the soil?
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