12th Inter Exam 2020 Biology “Sexual Reproduction Flowering Plants” Chapter VVI Objective Question With Answer On Latest Pattern, Biology VVI Important Objective Model Set Question Answer All ChapterWise Available
12th Biology “Sexual Reproduction Flowering Plants” Chapter VVI Objective Question With Answer
SEXUAL REPRODUCTION FLOWERING PLANTS
1. When the pollen grains are transferred by the agency of air, this type of pollination is called
(A) anemophily
(B) entomophily
(C) ornithophily
(D) myrmecophily
2. The female gametophyte of a typical dicot is also called Polygonum type of embryo sac. At the time of fertilization mature embryo sac is
(A) 7–celled. 7-nucleate
(B) 7–celled. 8–nucleate
(C) 8–celled, 7–nucleate
D) 8–celled, 8-nucleate
3. When pollination takes place between two flowers on the same plant, the process is known as
(A) xenogamy
(B) geitonogamy
(C) porogamy
(D) entomophily
4. When the body of the ovule, embryo sac, micropyle and funicle, all lie in one straight plane, the ovule is known as
(A) orthotropous
(B) amphitropous
(C) anatropous
(D) campylotropous
5. When the ovule is curved, and along with ovule the embryo sac becomes horse-shoe shaped, such an ovule is called
(A) anatropous
(B) circinotropous
(C) amphitropous
(D) orthotropous
6. The embryo sac is called monosporic when it develops from
(A) all the four megasporest
(B) two functional megaspores only
(C) three micropylar megaspores only
(D) one of the four megaspores which becomes functional
7. Pollination by birds is called werd
(A) entomophily
(B) myrmecophily
(C) ornithophily
(D) cheiropterophily
8. Which one is a false fruit?
(A) Mango
(C) Rice
(D) Apple
9. When pollination takes place by means of bees, it is called
(A) melittophily
(B) myrmecophily.
(C) ornithophily
(D) cheiropterophily
10. Which of the following is a true fruit?
(A) Coconut
(B) Apple
(C) Pear
(D) Cashew
11. The edible part in Litchi is
(A) endosperm
(B) mesocarpa
(C) fleshy aril
(D) pericarp
12. Anemophily can be best seen in
(A) sunflower
(B) maize
(C) fig
(D) yucca
13. The outer wall (exine) of a pollen grain is composed of one of the most resistant biological materials, known as
(A) tannin
(B) pectocellulose
(C) sporopollenin
(D) lignin
14. Flowers pollinated by snail and slug are called
(A) ornithophilous
(B) cheiropterophilous
(C) malacophilous
(D) entomophilous
15. Syngamy refers to fusion of one of the sperm with
(A) egg
(B) synergids
(C) secondary nucleus
(D) egg and the other secondary nucleus
16. Endosperm cell of an angiosperm has the chromosomes. The number of chromosomes in the gametes would be
(A) 8
(B) 16
(C) 24
(D) 48
17. How many chromosomes are present in endosperm?
(A) n
(B) 2n
(C) 3n
(D) both ‘A’and C
18. The number of meiotic divisions required to produce 400 seeds in a pea plant is
(A) 400
(B) 500
(C) 600
(D) 800
19. Aleurone layer is present in .
(A) cotyledons
(B) the peripheral part of scutellum
(C) the outermost layer of endosperm
(D) the peripheral part of coleoptile
20. Which of the following is not correct about pome?
(A) True fruit remains inside the swollen thalamus.
(B) Fruit develops from an apocarpous, superior ovary.
(C) Seeds develop inside the locules.
(D) Wall of the ovary is thin like a paper.
21. Transfer of pollen grains from anther to the stigma of a different plant is called
(A) xenogamy
(B) xenia
(C) geitonogamy
(D) cleistogamy
22. Which of the following is not a part of ovule (megasporan gium)?
(A) Integuments
(B) Nucellus
(C) Chalaza
(D) Endothecium
23. Entomophily is pollination through
(A) water
(B) insects
(C) animals
(D) air
24. The process of formation of microspores from a pollen
mother cell through meiosis is called
(A) megasporogenesis
(B) microsporogenesis
(C) microgametogenesis
(D) megagametogenesis
25. Removal of anthers from the flower bud before the anther dehisces, is called
(A) bagging
(B) artificial pollination
(C) emasculation
(D) hybridization
26. Scutellum is a part of
(A) grass cotyledon
(B) dicot cotyledon
(C) maize endosperm
(D) pericarp
27. Formation of an extra embryo from the nucellus or integument is called
(A) polyspermy
(B) apomixis
(C) parthenocarpy
(D) polyembryony
28. The edible part in coconut is endosperm. Which part of the endosperm is called liquid syncytium?
(A) Liquid endosperm in the coconut seed
(B) Endosperm meat
(C) Outermost layer of endosperm
(D) All of these
29. The single shield-shaped cotyledon in monocot is called
(A) epiblast
(B) coleorrhiza
(C) coleoptile
(D) scutellum
30. When anthers mature prior to maturity of stigma, it is called
(A) protogyny
(B) heterostyly
(C) dichogamy
(D) protandry
31. Which one is not a part of anther wall?
(A) Endothecium
(B) Endothelium
(C) Tapetum
(D) Middle layers
32. Anemophily is pollination through
(A) batirtis
(B) air
(C) birds
(D) snail
33. Pollen grains are well preserved as fossils because of the 14 presence of
(A) sporopollenin
(B) thin exine
(C) thick intine
(D) spiny exine
34. Egg apparatus consists of
(A) egg cells
(B) synergids
(C) both egg cell and synergids
(D) antipodals
35. Which of the following devices is not used by plants to prevent autogamy?
(A) Self–incompatibility
(B) Production of unisexual flowers
(C) Heterostyly
(D) Production of cleistogamous flowers
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36. The fusion of male gametes with secondary nucleus is called
(A) syngamy
(B) triple fusion
(C) geitonogamy
(D) cleistogamy
37. Ruminate endosperm is found in
(A) Asteraceae
(B) Fabaceae
(C) Euphorbiaceae
(D) Annonaceae
38. Plants of which one of the following groups of genera are pollinated by the same agency?
(A) Ficus, Bombax, Casuarina
(B) Triticum, Phoenix, Zea
(B) Kigelia, Yucca, Cocos
(D) Salvia, Jatropha, Morus
39. Cleistogamous flowers are
(A) insect pollinated
(B) bat pollinated
(C) self pollinated
(D) water pollinated
40. The process of double fertilization was discovered by
(A) Strasburger
(B) P Maheshwarium
(C) Nawaschinen
(D) Amici
41. Milky water of green coconut is
(A) liquid female gametophyte
(B) secretion of seedcoat
(C) liquid endosperm
(D) degenerated nuclear tissue
42. What is fertilization?
(A) Fusion of egg and male nucleus
(B) Fusion of egg and secondary nucleus
(C) Fusion of egg and synergid
(D) None
43. In which of the following plants does cleistogamy occur
(A) Dhatura
(B) Petuniables
(C) Commelina
(D) Gladiolus
44. The part of a flower in which two generation is found?
(A) Germinated pollen grain
(B) Seed
(C) Unfertilized ovule
(D) Embryo
45. The most common type of ovule in angiosperms is
(A) Amphitropous
(B) Atropous
(C) Anatropous
(D) Synotropus
46. What will be chromosomes number in Aleurone layer of cells if the number of chromosome in synergids of a plant species is 8?
(A) 16
(B) 24
(C) 32
(D) 8
47. Level mechanism of pollination is found in
(A) Anthirrhinum
(B) Ficus
(C) Wheat
(D) Salvia
48. Double fertilization result into
(A) Cotyledon
(B) Ovule
(C) Endosperm
(D) Embryo
49. Hypanthodium inflorescene is found in
(A) Peepal
(B) Tulsi
(C) Sagaun
(D) Madar
50. In which of the following there is formation of seed but not flower?
(A) Maize
(B) Minture
(C) Peepal
(D) Pinus
51. Which one is land fruits in the following
(A) Potato
(B) Groundnut
(C) Onion rate
(D) Turmeric
52. In which seed there is consumption of endosperm in CA developing embryo?
(A) Coconut
(B) Caster
(C) Pea
(D) Maize
53. Anemophilous flowers are usually?
(A) attractive
(B) small
(C) colourless
(D) both ‘B‘ and ‘C‘
54. Female gametophyte of angiosperms is called
(A) Endosperm
(B) Embryosac
(C) Embryo
(D) Zygoten
55. Egg apparatus consists of
(A) Egg
(B) Egg & polar nucleus
(C) Egg & Antipoldal cells
(D) Egg & Synergids
56. Cross pollination is beneficial because it results in
(A) formation of male offsprings
(B) weaker progeny
(C) better progeny
(D) fromation of seeds
57. The deposition of pollen grains on the stigma of another flower of the same plant is called
(A) dichogamy
(B) geitonogamy
(C) Xenogamy
(D) hydrogamy
58. Which in the following is absent in Endosperm?
(A) Egg
(B) Two polar nuclei
(C) Macrosporophytic cell
(D) Antipodals
59. Which in the following is absent in Anther cell?
(A) Endothecium
(B) Middle lamella
(C) Tapetum
(D) Integument
60. Aril is edible in which of the following fruits?
(A) Myristica
(B) Litchi
(C) Annona
(D) All of these
61. The part where ovule is attached with funicules is called
(A) Chalaza
(B) Micropyle
(C) Thallus
(D) Nucellus
62. The stalk of ovule is called
(A) Funiculus
(B) Caruncle
(C) Nucellus
(D) Pedical
63 The germination of seed in which cotyledon comes on land
is called
(A) Hypocotyl
(B) Epicotyl
(C) Heterothaly
(D) None
64. The father of Indian Angiospermic Embryology is
(A) B. M. Johry Belt
(B) B. L. Swamy
(C) R. N. Kapil
(D) P. Maheshwar
65. Aril is edible in
(A) Annona
(B) Apple
(C) Orange
(D) All
66. In pollen grains which vitamins is mainly found?
(A) vitamin B
(B) vitamin A
(C) vitamin D
(D) vitamin C
67. The study of pollen & spore is called
(A) Palynology
(B) Morphology
(C) Phycology
(D) Cytology
68. The process of production of seed without fertilization is called
(A) apomixis
(B) pollination
(C) triple fusion
(D) None
69. Pollination by insects is called
(A) Ornithophily
(B) Entomophily
(C) Hydrophily
(D) Chiropterophily
70. The male reproductive unit of a flowering plant is.
(A) Stamen
(B) Pistil
(C) Pollen sac
(D) Pollen die
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71. The female reproductive unit of a flowering plant is called
(A) Pistil
(B) Stamen
(C) Pollen sac
(D) None
72. The clearly visible pore or stomata in outer coat of pollengrain is called
(A) Exine
(B) Inner coat
(C) Germinal pore
(D) Germ cell
73. Pollen sac is a 4-celled structure in which found at its four corner?
(A) Microsporphyte
(B) Pollenkit
(C) Tapetum
(D) Protoplasm
74. Which one is the following is an aquatic grass?
(A) Vallisinaria
(B) Hydrilla
(C) Zostera
(D) All
75. Which one is the male reproductive part of a flower?
(A) Gynoecium
(B) Androecium
(C) Pistil
(D) Ovary
76. Which one is the female reproductive part of a flower?
(A) Gynoecium
(B) Androecium
(C) Stamen
(D) Pollen
77. Process of fusion of haploid cells is
(A) Cell cycle
(B) Meiosis
(C) Mitosis
(D) Syngamy
78. Function of tapetum is
(A) Protective
(B) Nutritive
(C) Respirator
(D) All of the above
79. Sexual reproduction of flowering plants was discovered by
(A) Camerarius
(B) Nawaschin
(C) Strasburger
(D) Maheswari
80. The pollen is
(A) haploid
(B) diploid
(C) triploid
(D) tetraploid
81. Polyembryony is maximum in
(A) Gymnosperm
(B) Pteridophyte )
(C) Angiosperms
(D) Bryophytes
82. How many mitotic division will take place in the formation of 100 pollen grains?
(A) 100
(B) 50
(C) 25
(D) 20
83. Diploid is
(A) egg
(B) pollen
(C) both ‘A‘ and ‘B
(D) zygote
84. For self pollination, a flower should be pas
(A) asexual
(B) monosexual
(C) unisexual
(D) bisexuales
85. Egg apparatus is made up of 3 0
(A) egg cells
(B) synergids
(C) antipodals
(D) Both ‘A’ & ‘B‘
86. The microspore mother cell in a pollen sac of anther is
(A) diploid
(B) haploid
(C) tripolido
(D) polyploid
87. Pollen grain with pollen tube represents
(A) male sporophyte
(B) male gametophyte
(C) female sporophyte .
(D) female gametophyte
88. How many nuclei are present in a mature pollen?
(A) 1
(C) 3
(D) 4
89. If 24 chromosome is found in endosperm of an angiosperms, then the no. of chromosome in gamete is
(A) 8
(B) 16
(C) 24
(D) 48
90. Number of chromosomes in root cell is 14. What will be the number in synergids?
(A) 14
(B) 21
(C) 7
(D) 28
91. Proteinaceous endosperm of maize is called
(A) apophysis
(B) scutellum
(C) coleoptile
(D) aleurone layer
92. One meiosis produces how many male gametes?
(A) 4
(B) 21
(C) 2
(D) 8
93. Pollination by Ants is called
(A) Ornithophily
(B) Myrmecophily
(C) Malacophily
(D) Chropterophily
94. Usually endosperm of carpsella is
(A) Haploid
(B) Diploid
(C) Triploid
(D) Polyploid
95. Anther represents a vente
(A) sporogonium
(B) male gametophyte
(C) male sporophyll
(D) sporangium
96. Pollination induces the abscission of all floral organs except one. That organ is
(A) anther
(B) pistil
(C) sepals
(D) receptacles
97. Edible part of Litchi is
(A) endosperm
(B) Mesocarp
(C) Fleshy aril
(D) Pericarp
98. A typical angiospermic endosperm is
(A) One–celled
(B) Two–celled
(C) Five celled
(D) Seven celled
99. Which one of the following is insectivorous plant?
(A) Drosera
(B) Nepenthes
(C) Both ‘A’ & ‘B‘
(D) Hydrila
100. In oyule meiosis takes place in
(A) Synergids
(B) Macrospore mother cell
(C) Microsporophyte
(D) Archesporium
101. In orthotropus ovule the micropyle & Hilum are
(A) Obliquely to funiculus
(B) at 90° to funiculus
(C) linear to funiculus
(D) parallel to funiculus
102. Aril is absent in which of the following?
(A) Annona
(B) Litchin
(C) Mango
(D) Myrristica
103. Which in the following forms endosperm by the fusion with male gamete?
(A) Unfertilized
(B) Secondary cell
(C) Antipodals
(D) Secondary Nucleus
104. Air pollinated flower is commonly
(A) attractive
(B) stunted pe
(C) colourless
(D) both ‘B‘ and ‘C‘
105. The maximum number of chromosome in a flowering plant Litorosa is 2n = 265, then the minimum number is
(A) 2n = 4
(B) 2n = 14
(C) 2n=2
(D) 2n = 16
106. There is 10 pair chromosome in Maize. How many linkage group will be?
(A) 20
(B) 40
(C) 10
(D) 5
107. A typical example of cross pollination is
(A) Wheat
(B) Tomato
(C) Potato
(D) Maize
108. Maturation of gynoecium before anther of the same flower is
(A) Protogyny
(B) Protandry
(C) Heterogamy
(D) Autogamy
109. Cytoplasm of pollen grain is rich in mal
(A) fat and starch
(B) sulphur
(C) chromoplast
(D) etiolin
110. Perisperm is the remaining part of
(A) nucellus
(B) embryo
(C) endosperm
(D) integumen
111. Cleistogamous flowers are always in proces
(A) Self–pollinated.
(B) Cross–pollinated
(C) Both
(D) None
112. The developing pollen derives its nutrition from
(A) tapetum
(B) endothecium in
(C) middle layers
(D) SMC
113. Pollination is the characteristic of
(A) Bryophytes and Angiosperms
(B) Peteridophytes and Angiosperms
(C) Angiosperms and Gymnosperms
(D) Angiosperms and Fungi
114. When the anthers and stigma in an intersexual flower mature at the same time, it is known as
(A) allogamy
(B) dichogamy
(C) homogamy
(D) syngamy
115. The outermost resistant layer of any pollen grain is made up of
(A) Tannin
(B) Pectocellulose
(C) Sporopollenina
(D) Ligning
116. Anemophily occurs in
(A) Salvia
(B) Vallisneriat
(C) Coconut
(D) Bottle brush
117. Which of the following will help in making early germination of pollen on stigma?
(A) P
(B) Ca
(C) Mo
(D) CI
118. If body of an ovule, embryo sac, micropyle & funicle are errect in one plane, then it is called
(A) orthotropous
(B) amphiltropous
(C) anatropous
(D) Campylotropous
119. If ovule is curved and embryosac is horse-shoe shaped, it is
called
(A) anatropous
(B) circinotropous
(C) amphitropous
(D) orthotropous
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120. If transfer of pollen grain occurs by air, it is called
(A) Anemophily
(B) entomophily
(C) Ornithophily
(D) Myrmecophily
121. Which in the following has cleistogamy?
(A) Dhatura
(B) Pitunia
(C) Comelina
(D) Gladiolus
122. If pollination occurs between two flowers of a plant, it is called
(A) Xenogamy
(B) Geitonogamy
(C) Posagamy
(D) Entomophily
123. If pollination occurs by Honey bee, it is called
(A) Ornithophily
(B) Myrmecophily
(C) Melittophily
(D) Chiropterophily
124. Pollination by birds is called
(A) entomophily
(B) myrmecophily
(C) ornithophily
(D) chiropterophily
125. When a flower is brightly coloured and sacretes nectar, it is most probably
(A) pollinated by wind
(B) pollinated by insects
(C) an insectivorous plants
(D) sterile flower
126. Autogamy is favoured by
(A) homogamy
(B) heterostyle
(C) dichogamy
(D) self sterility
127. The central cell of endosperm is
(A) Primary nucleus
(B) Secondary nucleus
(C) Synergids
(D) Both ‘A’& ‘B‘
128. Chemically pollen kit is made up of a
(A) proteins
(B) lipids and carotenoids
(C) carbohydrates and carotenoids
(D) sporopollenium
129. Male gametophyte of angiosperms/monocots is
(A) Microsporangium
(B) Nucellus
(C) Microspore
(D) Stamen
130. In angiosperms, all the four microspores of a tetrad are covered by a layer formed of
(A) cellulose
(B) sporopollenin
(C) pectose
(D) callose
131. MMC has 24 chromosmes. What will be the number of chromosomes in its endosperm?
(A) 12
(B)
(B) 24
(C) 36
(D) 48
132. The father of Modern embryology is dern embryology
(A) Schleiden and Schwann
(B) Hertwig
(C) Aristotle
(D) Von Baer
133. Endosperm provides food to the growing
(A) seeds
(B) fruits
(C) endosperm
(D) embryo
134. In angiosperms the fertilization occurs in
(A) nucellus
(B) embryo sac
(C) ovary
(D) ovule
135. Tapetum which develops into ovule is called
(A) amoeboid tapetum
(B) glandular tapetum
(C) integumentary tapetum
(D) flagellar tapetum
136. Arrangement of nuclei in normal dicot embryo sac is
(A) 3 + 3 + 2
(B) 2 + 3 + 3
(C) 3 + 2 +3
(D) 2 + 4 + 2
137. Largest cell in the ovule is
(A) MMC
(B) antipodal
(C) central cell
(D) size of cells variable
138. Sporogenesis is
(A) development and formation of spores
(B) production of mitosporesv
(C) production of meiospores
(D) formation of zygote and embryo.
139. A monothecous anther with two microsporangia is found in
(A) Brassica
(B) Corianders
(C) Legumes.
(D) Hibiscus
140. Polynology is the study of
(A) Pallen grains
(B) Palms
(C) Flowers
(D) Fruits
141. Which is diploid structure?
(A) Pollen grains
(B) Egg
(C) Megaspored
(D) MMC
142. The tissue which attaches the ovules inside the ovary is
(A) Funicle
(B) Hilum
(C) Placenta
(D) Chalaza
143. Which Thalamus in the following is edible?
(A) Annona
(B) Apple
(C) Orange
(D) Litchi
144. Point out the odd one
(A) archesporium
(B) oogonium
(C) ovule
(D) antheridium
145. Micropyle is found in
(A) ovule
(B) seed
(C) ovule and seed both
(D) fruit Pod
146. Female gametophyte is represented by
(A) ovule
(B) embryo sac
(C) megaspore mother cell
(D) megasporephyll
147. The female gamete of angiosperm is represented by
(A) egg
(B) carpel
(C) pollen grain
(D) oospore
148. Filliform apparatus is the characteristic of
(A) synergids
(B) egg
(C) anther walls
(D) antipodal cells
149. Flower organs have evolved from modified
(A) leaves
(B) branches
(C) sporangia
(D) apical meristems
150. The fertile part of stamen is
(A) anther
(B) filament
(C) connective
(D) ovule
151. In flowering plants unisexual male of flower is called
(A) Pistillate
(B) Monoecious
(C) Dioecious
(D) Staminate
152. What would be the number of chromosomes in aleurone layer if megaspore mother cell contains 10 chromosomes?
(A) 10
(B) 15
(C) 20
(D) 30
153. Sexual reproduction was first reported in plants by
(A) Kolreuter
(B) Camerarius
(C) Van Beneden
(D) Nawaschin
154. In which of the following hydrophily takes place?
(A) Eichomea
(B) Rose
(C) Hydrilla
(D) Both ‘B‘& *C
155. The endosperm in angiosperms is
(A) haploid
(B) diploid
(C) triploid
(D) tetraploid
156. At the time of entering embryo sac, the pollen tube contains
(A) two male gametes
(B) two male nuclei
(C) four male gametes
(D) three male gametes
157. Milky water of green tender cocoo called coconut milk is
(A) liquid chalaza
(B) liquid nucellus
(C) degenerated liquid free nuclear endosperm
(D) lisuid female gametophyte
158. During seed formation in angiosperms, secondary nucleus is modified into
(A) Embryo
(B) Endosperm
(C) Cotyledon
(D) Seed coat
159. In porogamy pollen tube enters into endosperm through
(A) Chalaza
(B) Integument
(C) Micropyle
(D) All of above
160. Which in the following is diploid?
(A) Egg cell
(B) Acessory cells
(C) Secondary nucleus
(D) Antipodal cells
161. The pollination in ‘semal’ takes place by add
(A) Bat
(B) Birds
(C) Water
(D) Air
162. The nutritive innermost layer of microsporangium is called
(A) Endothecium
(B) Intine
(C) Tapetum
(D) Middle layer
163. Endosperm is derived from
(A) Pollentube
(B) Microspore
(C) Microsporophyte
(D) Macrospore
164. Anatropus ovule is
(A) Errect.
(B) inverted
(C) round
(D) curved
165. Pollen bags are found in
(A) Pollen sacs
(B) Thallus
(C) Ovary
(D) Corolla
166. Which in the following is a false fruit?
(A) Strawberry
(B) Walnut
(C) Apple
(D) All of these
167. After fertilization, seed coats of seed develop from
(A) embryo sack
(B) integuments
(C) ovule
(D) chalazal region
168. One of the following essential for fertilization is
(A) Corolla
(B) Mature ovule
(C) Calyx
(D) Fruit
169. Ovule develops into
(A) Fruit
(B) Flower
(C) Seed
(D) Cotyledon
170. Total number of nuclei invovled in double fertilization is
(A) 2
(B) 3
(C) 4
(D) 5
171. Pollen grains are produced in
(A) anther
(B) stigma
(C) filamento
(D) pollen sac
172. Meiosis in anther occurs in
(A) endothecium cells
(B) pollens
(C) tapetal cells
(D) spore mother cells
173. A dithecous anther contains
(A) 4 microsporangia
(B) 3 microsporangia
(C) 2 microsporangia
(D) 1 microsporangia
174. How many pollen mother cells will form 1000 pollen grains?
(A) 200
(B) 250
(C) 300
(D) 100
175. If there are only four sporogenous cells in an anther, the number of pollen grains will be
(A) 4
(B) 8
(C) 16
(D) 12
176. Pollen grains are non-green due to
(A) absence of plastids
(B) degeneration of plastids
(C) conversion of plastids into chromoplasts
(D) attraction of vectors
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