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The code for this test series is : CBTS-CS-02; it will cover basic information on plant hormones and plant growth regulators. After reading and memorizing the notes, you will be able to answer all the questions correctly. Let’s know your score once you have attempted all the questions. If you have not read the pdf notes, then do read them first, as this test series is intended to boost your confidence step by step.

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Agriculture Review Confidence Booster Test Series

Question Code: : CBTS-CS-02

1. Which plant hormone is primarily responsible for promoting cell elongation and root initiation?

  • Gibberellins
  • Cytokinins
  • Auxins
  • Ethylene

2. Where are auxins primarily produced in the plant?

  • जड़
  • Leaves
  • Shoot apical meristem and young leaves
  • फूल

3. What is the main function of gibberellins in plants?

  • Promote cell division
  • Promote seed dormancy
  • Promote stem elongation and seed germination
  • Induce leaf abscission

4. Which hormone is involved in breaking seed dormancy and promoting germination?

  • Auxins
  • Abscisic acid
  • Gibberellins
  • Ethylene

5. Cytokinins are primarily synthesized in which part of the plant?

  • Leaves
  • फूल
  • जड़
  • फल

6. What role do cytokinins play in plants?

  • Promote cell division and delay leaf senescence
  • Induce leaf abscission
  • Promote fruit ripening
  • Inhibit seed germination

7. Which hormone is responsible for fruit ripening and leaf abscission?

  • Auxins
  • Cytokinins
  • Gibberellins
  • Ethylene

8. Where is ethylene produced in the plant?

  • जड़
  • Young leaves
  • Ripening fruits
  • All Parts Of Grown Plants

9. Which hormone induces seed dormancy and closes stomata during water stress?

  • Abscisic acid
  • Gibberellins
  • Cytokinins
  • Auxins

10. Abscisic acid is produced in which parts of the plant?

  • Roots and leaves
  • Stems and roots
  • Leaves, stems, roots, and green fruits
  • Flowers and fruits

11. Brassinosteroids are known for promoting which plant process?

  • Fruit ripening
  • Cell expansion and elongation
  • Seed dormancy
  • Leaf senescence

12. Jasmonates primarily mediate which plant response?

  • Cell division
  • Stress responses to herbivores and pathogens
  • Fruit ripening
  • Seed dormancy

13. Salicylic acid is involved in which type of plant defense?

  • Mechanical stress response
  • Systemic acquired resistance (SAR)
  • Seed germination
  • Fruit ripening

14. Which synthetic growth regulator is commonly used as a rooting agent in cuttings?

  • Gibberellic acid
  • Zeatin
  • Indole-3-butyric acid (IBA)
  • Jasmonic acid

15. Ethylene-releasing compounds are used in agriculture for what purpose?

  • Promote root formation
  • Increase cell division
  • Control and synchronize fruit ripening
  • Delay leaf senescence

16. What is one common use of synthetic auxins in agriculture?

  • Herbicides
  • Seed dormancy
  • Delay leaf senescence
  • Fruit ripening

17. How do abscisic acid (ABA) and gibberellins interact in seed germination?

  • Both promote seed dormancy
  • ABA promotes dormancy while gibberellins break dormancy
  • Both promote germination
  • ABA inhibits germination while gibberellins have no effect

18. What is the primary role of cytokinins in plant tissue culture?

  • Promote root growth
  • Inhibit cell division
  • Promote shoot formation
  • Induce fruit ripening

19. Which plant hormone is most associated with apical dominance?

  • Cytokinins
  • Auxins
  • Gibberellins
  • Ethylene

20. Which hormone is involved in the response to mechanical stress (thigmomorphogenesis)?

  • Cytokinins
  • Gibberellins
  • Ethylene
  • Abscisic acid

21. Which hormone’s primary function is to delay leaf senescence?

  • Abscisic acid
  • Cytokinins
  • Auxins
  • Gibberellins

22. Which hormone is known to mediate responses to mechanical stress and induce leaf abscission?

  • Gibberellins
  • Ethylene
  • Cytokinins
  • Abscisic acid

23. What is the main function of abscisic acid during water stress?

  • Promote cell elongation
  • Close stomata
  • Induce leaf senescence
  • Stimulate root growth

24. Which hormone is synthesized in roots and transported to other parts of the plant to stimulate cell division?

  • Auxins
  • Cytokinins
  • Gibberellins
  • Ethylene

25. Which synthetic growth regulator is used to control weeds?

  • Indole-3-butyric acid (IBA)
  • Zeatin
  • 2,4-D (synthetic auxin)
  • Jasmonic acid

26. Which plant hormone can enhance cell elongation and increase resistance to stress?

  • Auxins
  • Brassinosteroids
  • Cytokinins
  • Abscisic acid

27. Salicylic acid enhances plant resistance to pathogens by activating what?

  • Cell division
  • Plant defense genes
  • Fruit ripening
  • Seed germination

28. Which hormone is commonly used to synchronize fruit ripening in agriculture?

  • Auxins
  • Gibberellins
  • Ethylene
  • Cytokinins

29. Jasmonates are involved in which type of plant response?

  • Promote fruit ripening
  • Delay leaf senescence
  • Mediate stress responses to herbivores and pathogens
  • Increase cell division

30. Which hormone is used to promote cell elongation in dwarf plants?

  • Ethylene
  • Gibberellins
  • Cytokinins
  • Abscisic acid

31. What is the primary function of brassinosteroids in plants?

  • Promote cell expansion and elongation
  • Induce seed dormancy
  • Delay leaf senescence
  • Promote fruit ripening

32. Which hormone is associated with the systemic acquired resistance (SAR) in plants?

  • Cytokinins
  • Gibberellins
  • Salicylic acid
  • Ethylene

33. Which plant hormone can be used to induce parthenocarpy (development of fruit without fertilization)?

  • Gibberellins
  • Cytokinins
  • Ethylene
  • Abscisic acid

34. Which hormone plays a crucial role in initiating the ripening of climacteric fruits?

  • Cytokinins
  • Auxins
  • Ethylene
  • Gibberellins

35. What effect does abscisic acid have on stomatal closure?

  • Opens stomata
  • Closes stomata
  • Has no effect on stomata
  • Promotes stomatal development

36. Which hormone is involved in promoting the growth of lateral buds?

  • Ethylene
  • Cytokinins
  • Gibberellins
  • Abscisic acid

37. Which hormone can be used to extend the shelf life of cut flowers?

  • Abscisic acid
  • Cytokinins
  • Gibberellins
  • Ethylene

38. Brassinosteroids are known for their role in which plant process?

  • Seed dormancy
  • Cell expansion and elongation
  • Leaf abscission
  • Fruit ripening

39. The hormone responsible for delaying leaf senescence and promoting cell division is:

  • Auxins
  • Abscisic acid
  • Cytokinins
  • Ethylene

40. Which hormone promotes the closing of stomata during water stress?

  • Ethylene
  • Abscisic acid
  • Gibberellins
  • Cytokinins

यदि आपका कोई प्रश्न, विचार या सुझाव है तो कृपया नीचे टिप्पणी करें। आप फेसबुक, इंस्टाग्राम, कू और व्हाट्सएप मैसेंजर पर भी एग्रीकल्चर रिव्यू से जुड़ सकते हैं।

आदित्य अभिषेक ने एसडीएसयूवी, उत्तराखंड से कृषि में स्नातक की पढ़ाई पूरी की है। वह कृषि और गृह बागवानी पर सीखने और ज्ञान प्रदान करने पर ध्यान केंद्रित करते हैं। उन्होंने कृषि, बागवानी और दुकान की गुणवत्ता वाले उत्पादों और सेवाओं की बेहतर प्रथाओं को सीखने के लिए सभी प्रकृति उत्साही लोगों के लिए एक सामान्य मंच के रूप में एग्रीकल्चर रिव्यू बनाई।

समान पोस्ट

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