XI Biology Forms and Functions in Plants online Test Mdcat-2024

1. Plants which can trap water vapors from air are:

2. Carnivorous plants grow in:

3. First noticed in Gibberella fujikuroi fungus which infected rice seedlings and produced a disease called:

4. Meristems left by apical meristems were:

5. Phototropism curvature effect is due to light effect on:

6. Curvature movement of plant in response to touch stimulus is:

7. The best known plant hormones, Auxin, Cytokinin, Gibberellin, ABA and Ethylene all are effective at:

8. Which phytohormone causes delay in senescence?

9. Example of Auxin being in inhibitory effect is:

10. Which phytohormone helps in Parthenocarpy which is seedless fruit?

11. Essential inorganic elements are:

12. Each annual ring consists of outer zone___ and inner zone___ and inner zone having___ while outer zone having:

13. In the day time Pr is converted into___ because sunlight is predominantly___:

14. Forces like Cohesion, adhesion and___ are mainly responsible for upward movement of water:

15. Which of the following is not a macronutrient required by plants?

16. A plant cell placed in pure water will:

17. Pure water is assigned highest:

18. During translocation of sugars in plants from source to sink:

19. Which is the most accepted mechanism for the translocation of sugars from source to sink?

20. Upward movement of water against downward pull of gravity is known as:

21. The whole body of lower bryophytes contains, as their support and shape:

22. The pressure potential is always taken as:

23. Solution A has Ψs=-10bars and Ψp=3bars. Solution B has Ψs=−5bars and Ψp=0atm. The two are separated by semipermeable membrane. Flow of water will be:

24. Presence of macronutrient that help plants to withstand cold temperatures is:

25. In turgid cell the water potential is:

26. In beneficial leaves the upper region consists of upper epidermis which contains:

27. Leaves turn pale yellow due to loss of chlorophyll is a deficiency of:

28. Cytoplasmic connection through pores known as Plasmodesmata are found to be useful in:

29. The casparian strip, a waxy belt that extends through walls, is found in:

30. During Phloem loading the solute potential of the phloem______ and water from neighbouring xylem vessels_____:

31. The activity of lateral meristems cause _______ and it's called_____:

32. The function of companion cells is to control the activity of:

33. Scientific name of Water fly trap is:

34. Iron in cytochrome involved in ETC of respiration and Photosynthesis can exist in form of:

35. The rate of water flow in vessels to tracheids is:

36. Plants living in dry places such as deserts, steep and high altitudes having lack of water are:

37. Maintaining balance between water content and solute content is:

38. Leaf turn dull or bluish green is due to deficiency of:

39. When plant cell is put in solution which causes net output of water from cell to the solution causing plasmolysis, this solution is:

40. Promotion of flowering by a cold treatment given to seeds is known as:

41. Heat shock proteins are formed in:

42. The type of synthetic Auxin used for weedicide (selective weed killers) is:

43. Genetically dwarf plant can be converted into a plant of normal height with the application of:

44. Xylem tissues can be formed when Auxin is equally concentrated with:

45. The set of Day neutral plants are:

46. The pineapple which under natural conditions is difficult to blossom has been made to produce fruits throughout the year by the application of:

47. Which plant hormone causes fruit ripening?

48. Most of the plants are seasonal due to:

49. Which one of the following is not a synthetic auxin?

50. Which of the following is the first principle discovered phytohormone?

51. Mimosa shows :