Botany Bit Bank for EAMCET as per New Syllabus

76. Assertion (A): Sporopollenin is one of the most resistant organic chemical materials known.
Reason (R): No enzyme that degrades sporopollenin is known.
1) A & R are correct. R explains A.
2) A & R are correct. R do not explains A.
3) A is correct. R is false.
4) A is false. R is correct.

77. Sporopollenin is present in-
1) Wall of the pollengrain 2) Pollengrain
3) Outer layer of the wall 4) Inner layer of the wall

78. Wall of the pollengrain is made of-
1) Pectin 2) Cellulose 3) Sporopollenin 4) All

79. Assertion (A): Pollen grains are preserved as fossils.
Reason (R): They consist sporpollenin.
1) A & R are correct. R explains A.
2) A & R are correct. R do not explains A.
3) A is correct. R is false.
4) A is false. R is correct.

80. Match the following-
I. Sporopollenin A) Vegetative cell
II. Tapetum B) Intine
III. Cellulose & Pectin C) Nutritive layer
IV. Irregularly Shaped Nucleus D) Exine
I II III IV I II III IV
1) B C A D 2) D C B A
3) C D A B 4) A B D C

81. Germ pores are present in-
1) Pollen grain 2) exine & intine 3) Intine 4) Exine

82. Cytoplasm of the vegetative cell consists-
1) Irregularly shaped nucleus 2) Small generative cell
3) 1, 2 4) Pollen grain

83. Characters of Generative cell-
1) Small
2) Fusiform
3) Floats in the cytoplasm of vegetative cell
4) All

84. Pollen grains in majority of the plants are liberated at-
1) 2-celled stage 2) 3-celled stage
3) 1-celled stage 4) 4-celled stage

85. Parthenium came to India along with-
1) Carrot 2) Wheat 3) Maize 4) Rose

86. Assertion (A): Pollen grains increase the performance of horses and athletes.
Reason (R): They cause severe allergies bronchial afflictions, chronic respiratory
diseases and pollen allergy.
1) A & R are correct. R explains A.
2) A & R are correct. R do not explains A.
3) A is correct. R is false.
4) A is false. R is correct.

87. Assertion (A): Pollen tablets are used as food supplements.
Reason (R): They are rich in nutrients
1) A & R are correct. R explains A.
2) A & R are correct. R do not explains A.
3) A is correct. R is false.
4) A is false. R is correct.

88. Pollen bank means-
1) Pollen grains kept in honey
2) Pollen grains stored in bank
3) Pollen grains preserved in liquid nitrogen
4) Pollen grains preserved at 196° C.

89. Arrange the layers in a sequence from centre to periphery-
A. Tapetum B. Middle layers
C. Endothecium D. Epidermis
1) D C B A 2) A B C D 3) A D B C 4) B C A D

90. Multicarpellary syncarpous and apocarpous gynoecium are seen respectively in-
1) Annona, Ananas 2) Michelia, Poppy
3) Papaver, Michelia 4) Michelia, Annona

91. Arrange the following plants in ascending order basing on the number of carpels.
A. Allium B. Pea C. Michelia D. Solanum
1) B A C D 2) D A B C 3) C A B D 4) B D A C

92. Precursor of the male gametophytes-
1) Megaspore 2) Microspore
3) Male gametes 4) Pollen grain mother cell

93. Pollen grains germinate-
1) on the anther 2) on the ovule
3) in the nucleus 4) on the stigma

94. Number of ovules in the ovary of orchid-
1) Zero 2) Few 3) 1 only 4) Many

95. Cell division is unequal during the following kind of vegetative reproduction-
1) Fragementation 2) Gemmae 3) Budding 4) Tissue Culture

Answers:

76-1; 77-3; 78-4; 79-1; 80-2; 81-4; 82-3; 83-4; 84-1; 85-2; 86-2; 87-1; 88-3; 89-2; 90-3; 91-4; 92-2; 93-4; 94-4; 95-3.

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