NCERT CLASS 11 | TOPIC : PLANT PHYSIOLOGY-PLANT GROWTH AND DEVELOPMENT | QB-1 | NEET BIOLOGY ONLINE TEST ~ Kalvisolai Online Test

NCERT CLASS 11 | TOPIC : PLANT PHYSIOLOGY-PLANT GROWTH AND DEVELOPMENT | QB-1 | NEET BIOLOGY ONLINE TEST

It contains 100 important questions. Choose the most correct answer. Then check your answer. Try again if there are errors. Regards : www.onlinetest.kalvisolai.com

1 ➤ 1. What occurs due to the plants growth and development?

(a) Leaves, fl owers, fruits, etc., arise in an orderly pattern (b) Increase in girth (c) Falling of leaves and fruits (d) All the above

2 ➤ 2. Development consists of

(a) Growth (b) Differentiation (c) Both (a) and (b) (d) None of these

3 ➤ 3. Which of the following is correct about the development of a mature plant from a zygote?

(a) Follows a precise and ordered succession of events (b) Only diff erentiation occurs (c) Occurs due to environmental eff ect only (d) None of the above

4 ➤ 4. What kinds of factors govern a plant’s developmental process?

(a) Intrinsic factors (b) Extrinsic factors (c) Both (a) and (b) (d) None of these

5 ➤ 5. All cells of the plants are descendants of

(a) Zygote (b) Seeds (c) gametes (d) Both (b) and (c)

6 ➤ 6. Appearance and fall of fruits occurs due to

(a) Hormonal infl uence (b) Growth and development (c) Diff erentiation (d) Both (a) and (b)

7 ➤ 7. Which is one of the most fundamental and conspicuous characteristic of living being?

(a) Development (b) Differentiation (c) Maturation (d) Growth

8 ➤ 8. What is an irreversible permanent increase in size of an organ or its part or even of an individual cell?

(a) Development (b) Diff erentiation (c) Growth (d) Maturation

9 ➤ 9. Growth is accompanied by

(a) Anabolism (b) Catabolism (c) Both (a) and (b) (d) None of these

10 ➤ 10. Metabolism occurs on the expense of

(a) Nutrition (b) Water (c) Energy (d) Hormones

11 ➤ 11. If expansion of leaf occurs, it is known as

(a) Swelling (b) Imbibitions (c) Differentiation (d) Growth

12 ➤ 12. Why the growth of a plant is unique?

(a) The plant retains the capacity of unlimited growth. (b) The plant can regenerate the same characters. (c) There is no change in offspring’s characters. (d) None of the above

13 ➤ 13. The unique ability to retain the capacity of growth in plants is due to the presence of

(a) Lifetime differentiation (b) Activator hormones (c) Chlorophyll to utilize energy lifetime (d) Meristems at certain locations

14 ➤ 14. What is the special feature of meristem?

(a) It is present in every tissue (b) Its capacity to divide (c) Its capacity to self-perpetuate (d) Both (b) and (c)

15 ➤ 15. Cells that further make up the plant body ________ .

(a) Loose capacity to divide (b) Loose capacity to grow (c) Loose capacity to differentiate (d) None of these

16 ➤ 16. Continued growth due to activity of meristem is which type of growth?

(a) Closed growth (b) Open growth (c) Both (a) and (b) (d) None of these

17 ➤ 17. Meristems are found in

(a) Root apex (b) Shoot apex (c) Both (a) and (b) (d) None of these

18 ➤ 18. Meristems are responsible for ________

(a) Secondary growth (b) Primary growth (c) Both (a) and (b) (d) None of these

19 ➤ 19. What is the contribution of meristem in growth of plant?

(a) Elongation along the axis (b) Differentiation (c) Both (a) and (b) (d) None of these

20 ➤ 20. Secondary growth of plant occurs due to ________

(a) Lateral meristems (b) Vascular cambium (c) Cork cambium (d) All of these

21 ➤ 21. At cellular level, growth is an

(a) Increase in cytoplasm (b) Increase in size (c) Increase in nuclear size (d) Increase in protoplasm

22 ➤ 22. Which of the following is not the parameter for measuring growth?

(a) Wet weight (b) Dry weight (c) Volume (d) Cell member

23 ➤ 23. One single maize root apical meristem can give rise to how many cells per hour?

(a) 17500 (b) >17500 (c) <17500 (d) None of these

24 ➤ 24. By how many times, the cells of watermelon increase in size?

(a) 3,15,000 (b) 3,50,000 (c) 3,25,000 (d) 3,17,000

25 ➤ 25. In question 23 and 24 respectively growth can be expressed as increase in cell.

(a) Size, number (b) Volume, size (c) Number, size (d) Size, volume

26 ➤ 26. Growth of pollen tube is measured in terms of

(a) Weight (b) Width (c) Volume (d) Length

27 ➤ 27. Growth of a dorsiventral leaf can be measured in terms of ________

(a) Length (b) Width (c) Volume of cells (d) Surface area

28 ➤ 28. Which of the following are phases of growth?

(a) Meristemation (b) Elongation (c) Maturation (d) All of these

29 ➤ 29. Identify A, B, C, D and E in the given figure.

(a) A–Epicotyl hook, B–Soil line, C–Cotyledons, D–Hypocotyl, E–Seed coat (b) A–Soil line, B–Seed coat, C–Hypocotyl, D–Epicotyl hook, E–Cotyledons (c) A–Seed coat, B–Soil line, C–Cotyledons, D–Epicotyl hook, E–Hypocotyl (d) A–Hypocotyl, B–Seed coat, C–Epicotyl hook, D–Cotyledons, E–Soil line

30 ➤ 30. Which of the following represent meristematic phase of growth?

(a) Root apex (b) Shoot apex (c) Both (a) and (b) (d) None of these

31 ➤ 31. Which of the following are characteristics of the cells in meristematic region?

(a) Rich in protoplasm (b) Large nuclei (c) Thin plasma membrane (d) Both (a) and (b)

32 ➤ 32. Which of the following is not the characteristics of cell wall of meristematic cells?

(a) Primary in nature (b) Cellulosic (c) Abundant plasmodesmata (d) None of these

33 ➤ 33. Where can we find cells representing the phases of elongation?

(a) Root Apex (b) Shoot Apex (c) Cells proximal to both (d) All of these

34 ➤ 34. Which of the following is not the characteristic of the cells in elongation phase?

(a) Cell enlargement (b) New cell wall deposition (c) Decrease in volume (d) Both (a) and (b)

35 ➤ 35. Cells proximal to the phase of elongation show ________ .

(a) Meristematic phase (b) Maturative phase (c) Elongation phase (d) All of these

36 ➤ 36. What is A, B and C in the given figure?

(a) A–Shoot apical meristem, B–Root apical meristem, C–Vascular cambium (b) A–Vascular cambium, B–Root apical meristem, C–Shoot apical meristem (c) A–Root apical meristem, B–Vascular cambium, C–Shoot apical meristem (d) A–Vascular cambium, B–Shoot apical meristem, C–Root apical meristem

37 ➤ 37. Cells of maturative phase show

(a) Thickening of walls (b) Protoplasmic modification (c) Both (a) and (b) (d) None of these

38 ➤ 38. Increased growth per unit time is called

(a) Growth rate (b) Growth speed (c) Both (a) and (b) (d) None of these

39 ➤ 39. The growth rate shows an increase that can be

(a) Mathematical (b) Arithmetic (c) Geometrical (d) Both (b) and (c)

40 ➤ 40. In arithmetic growth, other than daughter cells, what happens to the other cells?

(a) They undergo maturation (b) They undergo differentiation (c) Both (a) and (b) (d) They undergo continuous cell division

41 ➤ 41. Examples of arithmetic growth is/are

(a) Root elongation (b) Increase in girth (c) Both (a) and (b) (d) None of these

42 ➤ 42. Slow initial growth is called

(a) Log phase (b) Lag phase (c) Exponential phase (d) None of these

43 ➤ 43. The rapidly increase in growth after showing initial period is called

(a) Log phase (b) Leg phase (c) Both (a) and (b) (d) None of these

44 ➤ 44. What is the speciality of the cells after mitotic cell division in geometric growth?

(a) Thickened cell wall (b) Occurring of well organized growth (c) Retaining the ability to divide (d) None of these

45 ➤ 45. Stationary phase occurs due to

(a) Increase in distance (b) Limited nutrient supply (c) Thickening of cell wall (d) None of these

46 ➤ 46. Geometrical growth graphically shows

(a) Linear curve (b) Sigmoid curve (c) Both one by one (d) Straight line

47 ➤ 47. Living organism growing in a natural environment can be found graphically by the presence of

(a) Sigmoid curve (b) Linear curve (c) Straight line (d) All of these

48 ➤ 48. Sigmoid curve is typical for which components of plant body?

(a) Cells (b) Tissue (c) Organs (d) All of these

49 ➤ 49. Exponential growth can be expressed as

(a) W1 = W0 ert (b) W0 = W1 ert (c) W1 = W0 eΔrt (d) None of these

50 ➤ 50. In the expression of exponential growth ‘e’ stands for (Question number 50-52 with respect to equation in question number 49)

(a) Exponential growth rate (b) Base of natural log (c) Relative growth rate (d) Change in size

51 ➤ 51. In expression of exponential growth ‘r’ is referred to as

(a) Growth rate (b) Efficiency index (c) Both (a) and (b) (d) Time of growth

52 ➤ 52. The final size, i.e., W1 depends principally on

(a) W0 (b) r (c) t (d) e

53 ➤ 53. Quantitative comparisons can be made by

(a) Absolute growth rate (b) Relative growth rate (c) Both (a) and (b) (d) None of these

54 ➤ 54. Measurement and comparison of total growth per unit time is called

(a) Absolute growth rate (b) Relative growth rate (c) Both (a) and (b) (d) None of these

55 ➤ 55. The growth of the given system per unit time which is expressed on a common basis or per unit initial parameter is known as

(a) Absolute growth rate (b) Relative growth rate (c) Both (a) and (b) (d) None of these

56 ➤ 56. Which of the following are not essential elements for growth?

(a) Water (b) Oxygen (c) Both (a) and (b) (d) None of these

57 ➤ 57. Cell enlargement mainly requires

(a) Oxygen (b) Water (c) Nutrients (d) None of these

58 ➤ 58. Extension of growth is supported by

(a) Oxygen (b) Turgidity (c) Osmosis (d) Imbibitions

59 ➤ 59. Plant growth and further development is intimately linked to

(a) Oxygen requirement (b) Maintaining temperature (c) Water status (d) None of these

60 ➤ 60. How does water help enzymatic activities needed for growth?

(a) Water maintains pH (b) Water maintains temperature (c) Water provides ions (d) Water provides medium

61 ➤ 61. What helps in releasing the metabolic energy essential for growth activities?

(a) Oxygen (b) Water (c) Nutrients (d) None of these

62 ➤ 62. What are required for the synthesis of protoplasm and act as source of energy?

(a) Oxygen (b) Micronutrients (c) Macronutrients (d) Both (b) and (c)

63 ➤ 63. What can affect phases/stages of growth?

(a) Temperature (b) Light (c) Gravity (d) All of these

64 ➤ 64. The process of derivation of cells from meristems and maturation to perform specific function is known as ________

(a) Regeneration (b) Dedifferentiation (c) Redifferentiation (d) differentiation

65 ➤ 65. During differentiation, what kind of changes take place?

(a) Structural (b) Functional (c) Both (a) and (b) (d) None of these

66 ➤ 66. What changes would occur in a cell to form a treachery element?

(a) Loose their protoplasm (b) Strong, elastic, lignocelluloses secondary cell wall (c) Both (a) and (b) (d) None of these

67 ➤ 67. What is the phenomenon of dedifferentiation?

(a) Regaining the capacity to divide (b) Loosing the capacity to divide (c) Loosing the capacity to divide after regaining (d) All of these

68 ➤ 68. What is re-differentiation?

(a) Regaining the capacity to divide (b) Loosing the capacity to divide (c) Loosing the capacity to divide after regaining (d) All of these

69 ➤ 69. Identify A, B, C and D in the given figure.

(a) A–Cell division, B–Senescence, C–Plasmatic growth, D–Mature cell (b) A–Meristematic cell, B–Plasmatic growth, C–Maturation, D–Senescence (c) A–Mature cell, B–Maturation, C–Senescence, D–Meristematic cell (d) A–Maturation, B–Cell division, C–Meristematic cell, D–Differentiation

70 ➤ 70. What kind of differentiation is seen in plants?

(a) Open (b) Close (c) Primary (d) All of these

71 ➤ 71. Identify the part of A, b and C in this figure.

(a) A–Water habitat, B–Juvenile, C–Terrestrial habitat (b) A–Juvenile, B–Terrestrial habitat, C–Water habitat (c) A–Terrestrial habitat, B–Juvenile, C–Water habitat (d) A–Juvenile, B–Water habitat, C–Terrestrial habitat

72 ➤ 72. Cells positioned away from root apical meristems, differentiate as

(a) Epidermis (b) root cap (c) Both (a) and (b) (d) None of these

73 ➤ 73. All those changes which an organism goes through during its life cycle from germination of the seed to senescence is termed as

(a) Growth (b) Differentiation (c) Development (d) None of these

74 ➤ 74. On whose response the plasts follow different pathways to form different kind of structures?

(a) Environment (b) Phases of life (c) Both (a) and (b) (d) None of these

75 ➤ 75. The ability of plants to follow different pathways in response to environment or phases of life to form different kind of structures is called?

(a) Adaptation (b) Differentiation (c) Maturation (d) Plasticity

76 ➤ 76. In which of the following plant the leaves of juvenile plant are different in shape than those in mature plants?

(a) Cotton (b) Coriander (c) Larkspur (d) All of these

77 ➤ 77. Leaves of which plant show environmental heterophylly?

(a) Cotton (b) Coriander (c) Larkspur (d) Buttercup

78 ➤ 78. The phenomenon of environmental heterophyll is also called

(a) Adaptation (b) Maturation (c) Plasticity (d) Growth

79 ➤ 79. What is the sum of growth and differentiation?

(a) Plasticity (b) Development (c) Maturation (d) All of these

80 ➤ 80. Development in plants is mainly controlled by ________

(a) Intrinsic factor (b) Extrinsic factor (c) Both (a) and (b) (d) None of these

81 ➤ 81. Intrinsic factor for plant development includes

(a) Intercellular (b) Intracellular (c) Both (a) and (b) (d) None of these

82 ➤ 82. Inter cellular factor required for development in plant include ________

(a) Chemical regulators (b) Genetic (c) Both (a) and (b) (d) None of these

83 ➤ 83. Intracellular factor required for development in plant include

(a) Chemical regulators (b) Genetic (c) Both (a) and (b) (d) None of these

84 ➤ 84. Extrinsic factor for plant development includes ________

(a) Light (b) Temperature (c) Water (d) All of these

85 ➤ 85. Nutrition is included in which phase of plant development?

(a) Former (b) Latter (c) Both (a) and (b) (d) None of these

86 ➤ 86. Oxygen is exchanged in which phase of plant development?

(a) Former (b) Latter (c) Both (a) and (b) (d) None of these

87 ➤ 87. Which of the following is not a characteristic of a PGR?

(a) They are large (b) Simple molecules (c) They are of diverse chemical composition (d) None of the above

88 ➤ 88. Match the following for PGR.
A. IAA – i. Carotenoids
B. Kinetin – ii. Terpenes
C. ABA – iii. Indole compounds
D. GA3 – iv. Adenine derivatives

(a) (A–iii) (B–iv) (C–i) (D–ii) (b) (A–i) (B–iii) (C–ii) (D–iv) (c) (A–iv) (B–ii) (C–iii) (D–i) (d) (A–ii) (B–i) (C–iv) (D–iii)

89 ➤ 89. N6–furfurylamino purine is which derivative?

(a) Indole compounds (b) Adenine (c) Terpenes (d) Carotenoids

90 ➤ 90. How many of the following are phytohormones? ABA, C2H4, IAA, GA3, ABA

(a) 2 (b) 3 (c) 4 (d) 5

91 ➤ 91. Which of the following is not a plant growth promoter?

(a) Auxins (b) Gibberellins (c) Ethylene (d) Abscisic acid

92 ➤ 92. Who initiated the discovery of plant growth hormones?

(a) Charles Darwin (b) Francis Darwin (c) Both (a) and (b) (d) None of these

93 ➤ 93. According to Charles Darwin, which plant would help in the discovery of PGH?

(a) Larkspur (b) Buttercup (c) Canary grass (d) All of these

94 ➤ 94. Coleoptiles responded to ________

(a) Light (b) Water (c) Touch (d) All of these

95 ➤ 95. As a response to stimuli the coleoptiles caused ________

(a) Bending (b) Flowering (c) Budding (d) All of these

96 ➤ 96. Auxins are discovered by

(a) Charles Darwin (b) Francis Darwin (c) F. W. Went (d) Both (a) and (b)

97 ➤ 97. Gibberella fujikuroi causes what disease in rice plants?

(a) Foolish seeding (b) Bikaner (c) Both (a) and (b) (d) None of these

98 ➤ 98. Who repotted that the symptoms reappeared in uninfected plants treated with sterile filtrate of giberella fungus?

(a) E. Kurosawa (b) F. Skoog (c) Both (a) and (b) (d) None of these

99 ➤ 99. Callus from which plant was observed by miller?

(a) Tomato (b) Tobacco (c) Rice plant (d) None of these

100 ➤ 100. Addition of what to auxins in nutrients medium causes proliferation of callus?

(a) DNA (b) Yeast extract (c) Coconut milk (d) All of these

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