3. A kidney stone is (CPMT 88, Manipal 05)(Kerala 2003)
Correct : C. A salt such as Oxalate crystallised in pelvis
4. Which of the following is both osmoregulator as well as nitrogenours product (DPMT 07)
Correct : B. Urea
5. which of these is not a keton body (CPMT 04)
Correct : C. Succinic acid
6. Maximum reabsorption of useful substance occurs in the region of nephron:
Correct : C. PCT
7. Excertory organs of cockroach are (Kerala PMT 07)
Correct : B. Malpighian tubules
8. Consider the following statement:
A. Flame cElls are excretory structures of flat worms
B. Green glands are excetory organs of annelids
C. Columns of Bertini are conial propertions of renal pelvis into renal medulla between the renal pyramids
Correct : B. B and C incorrect
9. Juxta glomerular cells of renal cortex synthesize a hormone called: (BHV 2007)
Correct : C. Renin
10. RAAS secretes which of the following hormones?
Correct : A. Mineralocorticoids
11. Which blood vessel carries least ammount of urea? (HAR PMT 2005)
Correct : C. Renal vein
12. Kidney stone are (Kerala PMT 2003)
Correct : C. Cystals of Oxalate
13. What is the maximum period of growth ?
Correct : C. Speedy growth rate
14. Which apparatus is used for measurement of growth ?
Correct : A. Auxanometer
15. Ethylene is responsible for
Correct : C. Ripping of fruits
16. What is the cause of `Bakane’ disease?
Correct : A. Fungi
17. Which substances are secreted at the apex of plant and they regulates growth of another region ?
Correct : B. Hormones
18. Which type of growth is seen in plants?
Correct : A. Irreversible
19. Which of the following sustance is not related with initiation of growth ?
Correct : A. ABA
20. Which group is correct for the growth inducer hormone ?
Correct : C. IAA, Gibberrelin, cytokinins
21. What is the main origin of cytokinin?
Correct : B. Root apex
22. Mention the effect of cytokinin
Correct : A. It induces cell division and retards the process of senescence
23. Give full form of 2-4-D
Correct : A. 2-4 dichloro phenoxy acetic acid
24. Which of the following stimulates growth in the internode region ?
Correct : B. Gibberrelin
25. Oat - coleoptile test (coleoptile-test) is conducted for which hormone ?
Correct : C. Indole acetic acid (IAA)
26. Gibberrelin participate in which of the following process?
Correct : D. All of the above
27. Tropic movement is due to
Correct : B. Unidirectional effect of environmental factors on plant parts
28. What is the period of cell formation to cell differntiation ?
Correct : D. Grand period of growth
29. What is the required temperature for growth in most of the plants?
33. Which of the following physiological process performed by gibberrelic acid?
Correct : C. Growth in size of stem and root formation
34. Which of the following is used to enhance colour of fruits and more juice in fruits unnaturally?
Correct : C. Ethylene gas
35. Which hormone is responsible for apical dominance?
Correct : A. Auxin
36. With which reaction Phytochrome is associated ?(AIMS- 1989, 1990, CBSE 1988, BHU 1981, 1991)
Correct : C. Photo-period
37. In the absence of light, amount of which of the following is increased ?
Correct : C. Elongation of internodes
38. When is abscission- layer formed? (AIIMS- 1980)
Correct : B. With decreased concentration of auxin
39. Vernalization is (MPPMT- 1990, AMU- 1999, IKCMEE- 2000)
Correct : C. Rapid growth in low temperature
40. What is initiative substance of IAA? (PMT- 1990- APMEE 2002)
Correct : A. Tryptophan
41. What is apical dominance? (CPMT- 1989)
Correct : D. Development of lateral buds hinders due to presence of apical bud
42. Which of the following is water stress hormone? (CBSE-1993, MPPMT-1995, BHU 1998, CETCHD, Kerala 2000, Orissa- 2003)
Correct : D. Abscisic acid
43. If apical region of stem is removed from any plant, what is observed? (CMPT - 1993, CBSE -1994, 2000, KARNATAKA - 2000
Correct : D. Lateral branches emerges
44. Which of the hormone is synthetic ? (MPPMT 1996, AIIMS 1996, BHU 1997, CPMT 1999)
Correct : D. 2-4 D
45. What is 2-4 D ?
Correct : A. Weedicide
46. What is agent Orange ? (CBSE 1998, AIMS 1999)
Correct : A. Weedicide with dioxin
47. 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)
Correct : D. Short-day plants
48. How gibberrelin accelerates seed germination ? (AIIMS 2005)
Correct : B. By the synthesis of digestive juice
49. What is the colour of Phytochrome pigment ?
Correct : A. Yellowish green
50. What is the reason of senescence leaf ?
Correct : B. Abscisic acid
51. Which hormone is responsible for bolting ?
Correct : C. Gibberrelin
52. Which hormone is synthesized by root and endosperm?
Correct : B. Cytokinin
53. Which hormone is responsible for growth of leaf-apex ?
Correct : A. IAA
54. How can a biannual plant be converted into an annual plant?
Correct : A. By cold process of seeds
55. Which of the following reaction is observed in droping of drocera due to insects ?
Correct : A. Thigmonasty
56. What is responsible for opening and closing of tulip flower ?
Correct : C. Thermonasty
57. By which reaction growth of cuscuta occurs on host plant ?
Correct : A. Thigmotropism
58. Which type of meristematic tissue is found in monocot plant for growth ?
Correct : A. Intercalary meristematic tissue
59. Which of the following is increased in plants as a result of growth ?
Correct : D. Dry weight
60. Which of the following is criteria for measurement of growth ?
Correct : B. Weight
61. In which phase of growth size of vacuole increases ?
Correct : B. Cell elongation
62. What is the optimum temperature for growth of the plants ?
Correct : B. 28 to 30oC
63. Which apparatus is used for exact measuring of growth of plants in longitudinal axis ?
Correct : A. Measuring scale
64. Growth regulators are chemically ........
Correct : A. Organic chemical
65. From where auxin was isolated for the first time ?
Correct : D. Human urine
66. Which of the following should be used for the control of weeds in farms ?
Correct : B. Auxin
67. Which chemical induces formation of adventitious roots ?
Correct : B. IAA
68. Which is incorrect for the effects of auxin ?
Correct : B. Induces growth and length in stem
69. Which of the following organic substance is growth inhibitor ?
Correct : B. ABA
70. From where indole acetic acid an organic substance was isolated for the first time ?
Correct : C. Human urine
71. Cytokinin is formed in which of the following region ?
Correct : C. Regions of cell division
72. Which hormone reduces the dominance of apical bud ?
Correct : C. Ethylene
73. Which is incorrect option for cytokinin ?
Correct : C. Increases dominance of apical bud
74. Drooping of fruit, after fruit maturation (ripening) shows ........ .
Correct : B. Decreases in amount of auxin
75. Which of the following is mismatched statement for effect of auxin ?
Correct : D. It helps in further elongation of some regions
76. Which hormore is essential for initial growth of root ?
Correct : A. IBA
77. Which is the specific use of synthetic auxin in higher concentration ?
Correct : A. Weedicide
78. Which of the following organic chemical is synthetic ?
Correct : A. 2-4-D
79. Which is required to inhibit germination of food storing part of potato ?
Correct : A. ABA
80. This hormone induces growth of root but inhibits growth of .......
Correct : C. Lateral buds
81. What is indicated by any of the developing plant if it increase / hyperactivity in lateral buds ?
Correct : D. Auxin decreases
82. From where gibberrelin was isolated for the first time ?
Correct : D. Gibberella
83. Which of the following effect of gibberrelin is observed in plant ?
Correct : B. Dwarf plant grows in longitudinal axis
84. Which of the following hormone is responsible for cell division ?
Correct : C. Cytokinin
85. Garland of green leaves remain green, by treatment of which organic chemical ?
Correct : A. Cytokinin
86. Which hormone inhibits senescence of vegetative parts and plants ?
Correct : B. Cytokinin
87. Which is natural growth inhibitor or senescence inducing hormone ?
Correct : B. ABA
88. Which hormone affects the growth of plant in adverse climatic / environmental condition ?
Correct : A. Abscisic acid
89. Which of the following phenomenon is regulated by abscisic acid ?
Correct : C. Opening and closing of stomata
90. Which hormone inhibits formation of new cells ?
Correct : A. Abscisic acid
91. Which of the following is responsible for seed dormancy ?
Correct : A. Abscissic acid
92. Name the hormone responsible for activity of chlorophyll in leaves.
Correct : A. Cytokinin
93. Which of the following is simple, volatile hormone ?
Correct : A. Ethylene
94. Which of the following statement about ABA is inappropriate ?
Correct : A. Induces ripening of fruit
95. Which hormone is absent in dormnant seed ?
Correct : C. GA
96. Which of the following statement is true for abscisic acid ?
Correct : A. Inhibits transcription of gene
97. By which physiological process water enters into seed coats of seed ?
Correct : D. Imbibition
98. What is called the effect of daylight on plant ?
Correct : B. Photoperiodism
99. Which of the following is correct option for seed germination ?
Correct : B. Emergance of primary root forms from radicle
100. What is the rate of respiration during seed germination ?