McqMate
Chapters
| 1. |
What is the maximum period of growth ? |
| A. | Slow growth rate |
| B. | Steady growth rate |
| C. | Speedy growth rate |
| D. | Senescence phase |
| Answer» C. Speedy growth rate | |
| 2. |
Which apparatus is used for measurement of growth ? |
| A. | Auxanometer |
| B. | Potometer |
| C. | Photometer |
| D. | Hydrometer |
| Answer» A. Auxanometer | |
| 3. |
Ethylene is responsible for |
| A. | Flowering |
| B. | Disease in roots |
| C. | Ripping of fruits |
| D. | Formation of fruits |
| Answer» C. Ripping of fruits | |
| 4. |
What is the cause of `Bakane’ disease? |
| A. | Fungi |
| B. | Algae |
| C. | Bacteria |
| D. | Virus |
| Answer» A. Fungi | |
| 5. |
Which substances are secreted at the apex of plant and they regulates growth of another region ? |
| A. | Enzyme |
| B. | Hormones |
| C. | Vitamins |
| D. | None of the above |
| Answer» B. Hormones | |
| 6. |
Which type of growth is seen in plants? |
| A. | Irreversible |
| B. | Increase in volume |
| C. | Local |
| D. | Reversible |
| Answer» A. Irreversible | |
| 7. |
Which of the following sustance is not related with initiation of growth ? |
| A. | ABA |
| B. | Gibberrelin |
| C. | IAA |
| D. | Cytokinin |
| Answer» A. ABA | |
| 8. |
Which group is correct for the growth inducer hormone ? |
| A. | IAA, ABA and cytokinin |
| B. | IAA, Gibberrelin, ABA |
| C. | IAA, Gibberrelin, cytokinins |
| D. | ABA, Ethylene |
| Answer» C. IAA, Gibberrelin, cytokinins | |
| 9. |
What is the main origin of cytokinin? |
| A. | Stem apex |
| B. | Root apex |
| C. | Young leaves |
| D. | Lateral buds |
| Answer» B. Root apex | |
| 10. |
Mention the effect of cytokinin |
| A. | It induces cell division and retards the process of senescence |
| B. | It maintains dormancy |
| C. | It induces senescence |
| D. | It inhibits cell division |
| Answer» A. It induces cell division and retards the process of senescence | |
| 11. |
Give full form of 2-4-D |
| A. | 2-4 dichloro phenoxy acetic acid |
| B. | 2-4 dichloro butyric acid |
| C. | 2-4 dichloro nepthalic acetic acid |
| D. | 2-4 dichloro ethylenic acid |
| Answer» A. 2-4 dichloro phenoxy acetic acid | |
| 12. |
Which of the following stimulates growth in the internode region ? |
| A. | Auxin |
| B. | Gibberrelin |
| C. | Cytokinin |
| D. | Abscisic acid |
| Answer» B. Gibberrelin | |
| 13. |
Oat - coleoptile test (coleoptile-test) is conducted for which hormone ? |
| A. | Abscisic acid |
| B. | Gibberrelic acid (GA) |
| C. | Indole acetic acid (IAA) |
| D. | Indole naphthalne acetic acid (INAA) |
| Answer» C. Indole acetic acid (IAA) | |
| 14. |
Gibberrelin participate in which of the following process? |
| A. | Removal of seed dormancy |
| B. | Developing seed less fruit |
| C. | Growth of internodes |
| D. | All of the above |
| Answer» D. All of the above | |
| 15. |
Tropic movement is due to |
| A. | Bidirectional effect of environmental factors on plant parts |
| B. | Unidirectional effect of environmental factors on plant parts |
| C. | Multidirectional effect of environmental factors on plant parts |
| D. | No effect of environmental factors on plant parts |
| Answer» B. Unidirectional effect of environmental factors on plant parts | |
| 16. |
What is the period of cell formation to cell differntiation ? |
| A. | Sigmoid graph |
| B. | Normal growth period |
| C. | Maximum growth period |
| D. | Grand period of growth |
| Answer» D. Grand period of growth | |
| 17. |
What is the required temperature for growth in most of the plants? |
| A. | 20-30 o C |
| B. | 35-40 o C |
| C. | 10-15 o C |
| D. | 15-20 o C |
| Answer» A. 20-30 o C | |
| 18. |
Zeatin is an example of |
| A. | ABA |
| B. | Auxin |
| C. | Gibberrellin |
| D. | Cytokinin |
| Answer» D. Cytokinin | |
| 19. |
Spiral developement of tendrils? (BHU 1989, CBSE 1999, 1995), (MPPMT 1992, CPMT 1993) ( CETCHO 2000,AIIMS 2000) (JK CMEE 2004) |
| A. | Thigmotropism |
| B. | Thermotropism |
| C. | Hydrotropism |
| D. | Phototropism |
| Answer» A. Thigmotropism | |
| 20. |
State the full form of IAA (NCRT 1974) |
| A. | Indole- 3 acetic anhydrase |
| B. | Indole-3 acetic acid |
| C. | Indole- 3 aceto acetate |
| D. | Indole-3 aceto-acetic |
| Answer» B. Indole-3 acetic acid | |
| 21. |
Which of the following physiological process performed by gibberrelic acid? |
| A. | Dwarfism of tall plant genetically |
| B. | Elongation of short plant genetically |
| C. | Growth in size of stem and root formation |
| D. | Yellowing of young leaves |
| Answer» C. Growth in size of stem and root formation | |
| 22. |
Which of the following is used to enhance colour of fruits and more juice in fruits unnaturally? |
| A. | Sodium chloride |
| B. | IAA |
| C. | Ethylene gas |
| D. | kinetin |
| Answer» C. Ethylene gas | |
| 23. |
Which hormone is responsible for apical dominance? |
| A. | Auxin |
| B. | Cytokinin |
| C. | Gibberrelin |
| D. | Ethylene |
| Answer» A. Auxin | |
| 24. |
With which reaction Phytochrome is associated ?(AIMS- 1989, 1990, CBSE 1988, BHU 1981, 1991) |
| A. | Phototropism |
| B. | Photorespiration |
| C. | Photo-period |
| D. | Geotropism |
| Answer» C. Photo-period | |
| 25. |
In the absence of light, amount of which of the following is increased ? |
| A. | Absorption of mineral salt |
| B. | Absorption of water |
| C. | Elongation of internodes |
| D. | Ascent of sap |
| Answer» C. Elongation of internodes | |
| 26. |
When is abscission- layer formed? (AIIMS- 1980) |
| A. | With increased concentration of auxin |
| B. | With decreased concentration of auxin |
| C. | With increased concentration of gibberrelin |
| D. | With decreased concentraton of gibberelin |
| Answer» B. With decreased concentration of auxin | |
| 27. |
Vernalization is (MPPMT- 1990, AMU- 1999, IKCMEE- 2000) |
| A. | Growth graph related to light |
| B. | Effect of photoperiod on the growth of plant, which results flowering |
| C. | Rapid growth in low temperature |
| D. | Daily photo period |
| Answer» C. Rapid growth in low temperature | |
| 28. |
What is initiative substance of IAA? (PMT- 1990- APMEE 2002) |
| A. | Tryptophan |
| B. | Lucine |
| C. | Tyrosine |
| D. | Phehyl alamine |
| Answer» A. Tryptophan | |
| 29. |
What is apical dominance? (CPMT- 1989) |
| A. | Growth of apical bud is inhibited due to nearby lateral buds |
| B. | Growth of apical bud is promoted due to removal of nearest lateral buds |
| C. | Removal of apical bud hinders growth of lateral buds |
| D. | Development of lateral buds hinders due to presence of apical bud |
| Answer» D. Development of lateral buds hinders due to presence of apical bud | |
| 30. |
Which of the following is water stress hormone? (CBSE-1993, MPPMT-1995, BHU 1998, CETCHD, Kerala 2000, Orissa- 2003) |
| A. | Benzyl amino purine |
| B. | 2,4- dichlorophenoxy acetic acid |
| C. | Ethylene |
| D. | Abscisic acid |
| Answer» D. Abscisic acid | |
| 31. |
If apical region of stem is removed from any plant, what is observed? (CMPT - 1993, CBSE -1994, 2000, KARNATAKA - 2000 |
| A. | New apical bud formation |
| B. | Length of main stem increases |
| C. | Plant dies |
| D. | Lateral branches emerges |
| Answer» D. Lateral branches emerges | |
| 32. |
Which of the hormone is synthetic ? (MPPMT 1996, AIIMS 1996, BHU 1997, CPMT 1999) |
| A. | GA3 |
| B. | GA2 |
| C. | IAA |
| D. | 2-4 D |
| Answer» D. 2-4 D | |
| 33. |
What is 2-4 D ? |
| A. | Weedicide |
| B. | Insecticide |
| C. | Rodenticide |
| D. | Wormicide |
| Answer» A. Weedicide | |
| 34. |
What is agent Orange ? (CBSE 1998, AIMS 1999) |
| A. | Weedicide with dioxin |
| B. | Chemical used in luminiscent plant |
| C. | Insectide which is biodegradable |
| D. | Colour used in tube light |
| Answer» A. Weedicide with dioxin | |
| 35. |
One plant group kept for 12 hrs in day and 12 hrs in night and flowering is observed in it. Another plant group is kept similarly for day - night period and for very short time light is given during dark period it do not flower. What is such type of plant called ? (CBSE 2004) |
| A. | Long-day plant |
| B. | Day-neutral plants |
| C. | Medium-day plants |
| D. | Short-day plants |
| Answer» D. Short-day plants | |
| 36. |
How gibberrelin accelerates seed germination ? (AIIMS 2005) |
| A. | By effecting rate of cell division |
| B. | By the synthesis of digestive juice |
| C. | Abscisic acid |
| D. | Absorption of water from hard seed coat |
| Answer» B. By the synthesis of digestive juice | |
| 37. |
What is the colour of Phytochrome pigment ? |
| A. | Yellowish green |
| B. | Bluish |
| C. | Red |
| D. | Pink |
| Answer» A. Yellowish green | |
| 38. |
What is the reason of senescence leaf ? |
| A. | Ethylene |
| B. | Abscisic acid |
| C. | cytokinin |
| D. | Auxin |
| Answer» B. Abscisic acid | |
| 39. |
Which hormone is responsible for bolting ? |
| A. | Auxin |
| B. | Cytokinin |
| C. | Gibberrelin |
| D. | Ethylene |
| Answer» C. Gibberrelin | |
| 40. |
Which hormone is synthesized by root and endosperm? |
| A. | Auxin |
| B. | Cytokinin |
| C. | Gibberrelin |
| D. | Ethylene |
| Answer» B. Cytokinin | |
| 41. |
Which hormone is responsible for growth of leaf-apex ? |
| A. | IAA |
| B. | Zeatin |
| C. | Gibberrelin |
| D. | Ethylene |
| Answer» A. IAA | |
| 42. |
How can a biannual plant be converted into an annual plant? |
| A. | By cold process of seeds |
| B. | By giving more light |
| C. | By giving more oxygen |
| D. | By giving more temperature |
| Answer» A. By cold process of seeds | |
| 43. |
Which of the following reaction is observed in droping of drocera due to insects ? |
| A. | Thigmonasty |
| B. | Chemotropis |
| C. | Photonasty |
| D. | Thigmotropism |
| Answer» A. Thigmonasty | |
| 44. |
What is responsible for opening and closing of tulip flower ? |
| A. | Photonastic movement |
| B. | Geotropism |
| C. | Thermonasty |
| D. | Nictinasty |
| Answer» C. Thermonasty | |
| 45. |
By which reaction growth of cuscuta occurs on host plant ? |
| A. | Thigmotropism |
| B. | Chemtropism |
| C. | Thigmonasty |
| D. | Photonasty |
| Answer» A. Thigmotropism | |
| 46. |
Which type of meristematic tissue is found in monocot plant for growth ? |
| A. | Intercalary meristematic tissue |
| B. | Apical meristem tissue |
| C. | Lateral meristem tissue |
| D. | Meristematic tissue |
| Answer» A. Intercalary meristematic tissue | |
| 47. |
Which of the following is increased in plants as a result of growth ? |
| A. | Dry volume |
| B. | Width |
| C. | Number |
| D. | Dry weight |
| Answer» D. Dry weight | |
| 48. |
Which of the following is criteria for measurement of growth ? |
| A. | Number |
| B. | Weight |
| C. | Volume |
| D. | All a, b, c |
| Answer» B. Weight | |
| 49. |
In which phase of growth size of vacuole increases ? |
| A. | Cell formation |
| B. | Cell elongation |
| C. | cell difterentiation |
| D. | Cell transfer |
| Answer» B. Cell elongation | |
| 50. |
What is the optimum temperature for growth of the plants ? |
| A. | 25 to 30oC |
| B. | 28 to 30oC |
| C. | 0 to 30oC |
| D. | 0 to 28oC |
| Answer» B. 28 to 30oC | |
| 51. |
Which apparatus is used for exact measuring of growth of plants in longitudinal axis ? |
| A. | Measuring scale |
| B. | Auxanometer |
| C. | Manometer |
| D. | Sphigomanometer |
| Answer» A. Measuring scale | |
| 52. |
Growth regulators are chemically ........ |
| A. | Organic chemical |
| B. | Inorganic chemicals |
| C. | Minerals |
| D. | Vitamins |
| Answer» A. Organic chemical | |
| 53. |
From where auxin was isolated for the first time ? |
| A. | Coleoptile of oat |
| B. | Sperm cell of herring fish |
| C. | Paddy plant |
| D. | Human urine |
| Answer» D. Human urine | |
| 54. |
Which of the following should be used for the control of weeds in farms ? |
| A. | Cytokinin |
| B. | Auxin |
| C. | Gibberrelin |
| D. | Ethylene |
| Answer» B. Auxin | |
| 55. |
Which chemical induces formation of adventitious roots ? |
| A. | Gibberrelin |
| B. | IAA |
| C. | Abscisic acid |
| D. | Cytokinins |
| Answer» B. IAA | |
| 56. |
Which is incorrect for the effects of auxin ? |
| A. | Induces +ve phototropism |
| B. | Induces growth and length in stem |
| C. | Shows apical dominance |
| D. | Induces -ve phototropism in roots |
| Answer» B. Induces growth and length in stem | |
| 57. |
Which of the following organic substance is growth inhibitor ? |
| A. | IBA |
| B. | ABA |
| C. | IAA |
| D. | GA |
| Answer» B. ABA | |
| 58. |
From where indole acetic acid an organic substance was isolated for the first time ? |
| A. | Animal fat |
| B. | Gibberrela |
| C. | Human urine |
| D. | Fish |
| Answer» C. Human urine | |
| 59. |
Cytokinin is formed in which of the following region ? |
| A. | Region of cell elongation |
| B. | Regions of senescence |
| C. | Regions of cell division |
| D. | Regions of abscission |
| Answer» C. Regions of cell division | |
| 60. |
Which hormone reduces the dominance of apical bud ? |
| A. | Auxin |
| B. | ABA |
| C. | Ethylene |
| D. | Cytokinin |
| Answer» C. Ethylene | |
| 61. |
Which is incorrect option for cytokinin ? |
| A. | Retards senescence |
| B. | Secreted in the region of active cell division |
| C. | Increases dominance of apical bud |
| D. | Stimulates cell division |
| Answer» C. Increases dominance of apical bud | |
| 62. |
Drooping of fruit, after fruit maturation (ripening) shows ........ . |
| A. | Increase in amount of auxin |
| B. | Decreases in amount of auxin |
| C. | Reduces in amount of ABA |
| D. | Increase gibberrelic acid |
| Answer» B. Decreases in amount of auxin | |
| 63. |
Which of the following is mismatched statement for effect of auxin ? |
| A. | It inhibits lateral growth |
| B. | It induces stem elongation in plant |
| C. | It induces cell division |
| D. | It helps in further elongation of some regions |
| Answer» D. It helps in further elongation of some regions | |
| 64. |
Which hormore is essential for initial growth of root ? |
| A. | IBA |
| B. | GA |
| C. | ABA |
| D. | Kinetin |
| Answer» A. IBA | |
| 65. |
Which is the specific use of synthetic auxin in higher concentration ? |
| A. | Weedicide |
| B. | Inhibits growth of lateral buds |
| C. | Inhibits initial process of root formation |
| D. | Regulates cell elongation |
| Answer» A. Weedicide | |
| 66. |
Which of the following organic chemical is synthetic ? |
| A. | 2-4-D |
| B. | IAA |
| C. | GA |
| D. | IBA |
| Answer» A. 2-4-D | |
| 67. |
Which is required to inhibit germination of food storing part of potato ? |
| A. | ABA |
| B. | IAA |
| C. | IBA |
| D. | GA |
| Answer» A. ABA | |
| 68. |
This hormone induces growth of root but inhibits growth of ....... |
| A. | Apical bud |
| B. | Unfertilized fruit developement |
| C. | Lateral buds |
| D. | Root |
| Answer» C. Lateral buds | |
| 69. |
What is indicated by any of the developing plant if it increase / hyperactivity in lateral buds ? |
| A. | It obtains more light |
| B. | Cytokinin decreases |
| C. | It stores more food |
| D. | Auxin decreases |
| Answer» D. Auxin decreases | |
| 70. |
From where gibberrelin was isolated for the first time ? |
| A. | Penicillium |
| B. | Asparagus |
| C. | Mucor |
| D. | Gibberella |
| Answer» D. Gibberella | |
| 71. |
Which of the following effect of gibberrelin is observed in plant ? |
| A. | Long plant shorten |
| B. | Dwarf plant grows in longitudinal axis |
| C. | Induces formation of root system |
| D. | Yellowing of young leaves |
| Answer» B. Dwarf plant grows in longitudinal axis | |
| 72. |
Which of the following hormone is responsible for cell division ? |
| A. | GA |
| B. | IAA |
| C. | Cytokinin |
| D. | Abscisic acid |
| Answer» C. Cytokinin | |
| 73. |
Garland of green leaves remain green, by treatment of which organic chemical ? |
| A. | Cytokinin |
| B. | Auxin |
| C. | Ethylene |
| D. | Gibberrelin |
| Answer» A. Cytokinin | |
| 74. |
Which hormone inhibits senescence of vegetative parts and plants ? |
| A. | Auxin |
| B. | Cytokinin |
| C. | Gibberrelin |
| D. | Abscisic acid |
| Answer» B. Cytokinin | |
| 75. |
Which is natural growth inhibitor or senescence inducing hormone ? |
| A. | IAA |
| B. | ABA |
| C. | NAA |
| D. | GA |
| Answer» B. ABA | |
| 76. |
Which hormone affects the growth of plant in adverse climatic / environmental condition ? |
| A. | Abscisic acid |
| B. | Ethylene |
| C. | NAA |
| D. | 2-4, D |
| Answer» A. Abscisic acid | |
| 77. |
Which of the following phenomenon is regulated by abscisic acid ? |
| A. | Shoot elongation |
| B. | Origin of cell wall and cell elongation |
| C. | Opening and closing of stomata |
| D. | Abscission of leaf and dormancy |
| Answer» C. Opening and closing of stomata | |
| 78. |
Which hormone inhibits formation of new cells ? |
| A. | Abscisic acid |
| B. | Kinetin |
| C. | Gibberrelic acid |
| D. | Indol-butaric acid |
| Answer» A. Abscisic acid | |
| 79. |
Which of the following is responsible for seed dormancy ? |
| A. | Abscissic acid |
| B. | Ethylene |
| C. | Gibberrelin |
| D. | Auxin |
| Answer» A. Abscissic acid | |
| 80. |
Name the hormone responsible for activity of chlorophyll in leaves. |
| A. | Cytokinin |
| B. | Ethylene |
| C. | Gibberrelin |
| D. | ABA |
| Answer» A. Cytokinin | |
| 81. |
Which of the following is simple, volatile hormone ? |
| A. | Ethylene |
| B. | ABA |
| C. | IAA |
| D. | Cytokinin |
| Answer» A. Ethylene | |
| 82. |
Which of the following statement about ABA is inappropriate ? |
| A. | Induces ripening of fruit |
| B. | Inhibits seed germination |
| C. | Induces dormancy of bud |
| D. | Closes stomata |
| Answer» A. Induces ripening of fruit | |
| 83. |
Which hormone is absent in dormnant seed ? |
| A. | ABA |
| B. | Auxin |
| C. | GA |
| D. | Ethylene |
| Answer» C. GA | |
| 84. |
Which of the following statement is true for abscisic acid ? |
| A. | Inhibits transcription of gene |
| B. | Opens stomata |
| C. | Reduces senescence |
| D. | Acts as weedicide |
| Answer» A. Inhibits transcription of gene | |
| 85. |
By which physiological process water enters into seed coats of seed ? |
| A. | Endosmosi |
| B. | Diffusion |
| C. | Plasmolysis |
| D. | Imbibition |
| Answer» D. Imbibition | |
| 86. |
What is called the effect of daylight on plant ? |
| A. | Phototropic |
| B. | Photoperiodism |
| C. | Photooxidatio |
| D. | Photonastism |
| Answer» B. Photoperiodism | |
| 87. |
Which of the following is correct option for seed germination ? |
| A. | Emergance of radicle from primary root |
| B. | Emergance of primary root forms from radicle |
| C. | Development of primary root |
| D. | No root formation |
| Answer» B. Emergance of primary root forms from radicle | |
| 88. |
What is the rate of respiration during seed germination ? |
| A. | Slow |
| B. | Steady |
| C. | Rapid |
| D. | Zero |
| Answer» C. Rapid | |
| 89. |
Which of the following group show viviparous germination ? |
| A. | Rhizophora and Avicinnia |
| B. | Orchid and Rhizophora |
| C. | Maize and Bean |
| D. | Soyabean and Xanthium |
| Answer» A. Rhizophora and Avicinnia | |
| 90. |
Which of the following is found in high concentration in healthy leaf ? |
| A. | Cytokinin |
| B. | Gibberrelin |
| C. | Auxin |
| D. | Ethylene |
| Answer» C. Auxin | |
| 91. |
From the given below which is short-day plant ? |
| A. | Paddy |
| B. | Wheat |
| C. | Oat |
| D. | Opium |
| Answer» A. Paddy | |
| 92. |
Which of the following is long-day plant ? |
| A. | Oat |
| B. | Soyabean |
| C. | Vinca |
| D. | Paddy |
| Answer» A. Oat | |
| 93. |
Vernalization means.............. |
| A. | Growth Graph |
| B. | Flowering at high temperature |
| C. | Effect of light on growth |
| D. | Speedy flowering at low temperature |
| Answer» D. Speedy flowering at low temperature | |
| 94. |
Flowering due to low temperature is ......... |
| A. | Thermonasty |
| B. | Vernalization |
| C. | Nutation |
| D. | Photonasty |
| Answer» B. Vernalization | |
| 95. |
If temporary light is made available for dark phase of long day plant, what is observed ? |
| A. | Flowering will not occur |
| B. | Increase in flowering |
| C. | Decreasing in flowering |
| D. | No change |
| Answer» A. Flowering will not occur | |
| 96. |
Which is an essential temperature for more production of wheat by noting effect of low temperature ? |
| A. | °1to 20 C |
| B. | °28to30 C |
| C. | °1to10 C |
| D. | °25to30 C |
| Answer» C. °1to10 C | |
| 97. |
By which condition flowering take place in short day plant ? |
| A. | Short day and long night |
| B. | Short day and short night |
| C. | Short night |
| D. | Long day and short night |
| Answer» A. Short day and long night | |
| 98. |
Which type of light is required in long day plants for flowering ? |
| A. | Red light |
| B. | More light than alloted period |
| C. | Less light than alloted time period |
| D. | All of the given |
| Answer» B. More light than alloted period | |
| 99. |
Where is phytochrome pigment present ? |
| A. | Fungi |
| B. | Algae |
| C. | Bryophyta |
| D. | Phanerogams |
| Answer» D. Phanerogams | |
| 100. |
Which physilogical reaction is essential for development leaftendril ? |
| A. | Curvature |
| B. | Nastism |
| C. | Circumnutation |
| D. | Tropism |
| Answer» C. Circumnutation | |
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