51. In ferns the sporophyte is:
Answer: C. large, conspicuous and independent
Biology Class 11 Unit 8: Plantae MCQs
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52. Spore bearing leaves of ferns are called:
Answer: C. fronds
53. Young fern fronds are coiled. This pattern of growth is called:
Answer: B. circinate vernation
54. Adiantum is commonly known as:
Answer: B. maidenhair fern
55. The stem of Adiantum is:
Answer: B. an underground horizontal rhizome
56. The brownish scales on Adiantum rhizome are called:
Answer: B. ramenta
57. Clusters of sporangia in ferns are called:
Answer: C. sori
58. The sorus in Adiantum is protected by a:
Answer: B. false indusium (bent leaf margin)
59. The part of a fern sporangium wall with thick-walled cells is the:
Answer: B. annulus
60. The thin-walled cells where fern sporangium bursts form the:
Answer: B. stomium
61. The gametophyte of Adiantum is called the:
Answer: B. prothallus (heart-shaped)
62. The fern gametophyte is:
Answer: B. haploid
63. Fern antherozoids reach the archegonia by:
Answer: B. chemotactic movement in water
64. Fern life cycle illustrates:
Answer: B. heteromorphic alternation of generations
65. Spermatophytes are:
Answer: B. seed-producing vascular plants
66. The two classes of spermatophytes are:
Answer: B. Gymnospermae and Angiospermae
67. All spermatophytes are:
Answer: B. heterosporous
68. The small male spores are called:
Answer: B. microspores
69. The ovule is another name for the:
Answer: B. megasporangium (with integuments)
70. The protective layers around a megasporangium are the:
Answer: B. integuments
71. The small opening in the ovule through which pollen tube enters is the:
Answer: B. micropyle
72. In an ovule how many megaspores out of four are functional?
Answer: D. One
73. After fertilization the ovule becomes the:
Answer: B. seed
74. The integuments form the:
Answer: C. seed coat
75. The name Gymnosperm means:
Answer: B. naked seed
76. Gymnosperms constitute about what fraction of the world's forests?
Answer: B. One-third
77. Gymnosperms lack:
Answer: C. flowers and fruits
78. Xylem of gymnosperms consists of tracheids and xylem parenchyma and generally lacks:
Answer: B. vessels and fibres (except Gnetales)
79. The phloem of gymnosperms lacks:
Answer: B. companion cells
80. Xerophytic features of gymnosperm leaves include:
Answer: B. thick cuticle, sunken stomata and wax
81. The two subclasses of gymnosperms are:
Answer: B. Cycadophytes and Coniferophytes
82. Which is a cycad?
Answer: C. Cycas
83. Which is a conifer?
Answer: B. Pinus
84. Sago is obtained from:
Answer: B. Cycas circinalis
85. Ephedrine from Ephedra is used for:
Answer: B. asthma and respiratory ailments
86. Chilgoza is the edible seed of:
Answer: B. Pinus gerardiana
87. Deodar is:
Answer: C. Cedrus
88. Resins, turpentine and tar are obtained from:
Answer: C. conifers
89. Pinus belongs to the order:
Answer: C. Coniferales
90. The dominant generation in Pinus is:
Answer: B. sporophyte (diploid)
91. The spore-producing structures in Pinus are the:
Answer: C. cones (strobili)
92. Male cones of pine are:
Answer: B. small (less than an inch) borne in clusters
93. Female cones of pine are:
Answer: B. large, 6 to 12 inches, woody
94. Each microsporophyll bears how many microsporangia?
Answer: B. Two
95. At the base of each megasporophyll how many ovules are present?
Answer: B. Two
96. The pollen grains of Pinus have:
Answer: B. wings for wind dispersal
97. Transfer of pollen to the female cone is:
Answer: C. pollination
98. In gymnosperms each male gametophyte contributes only one sperm. This is:
Answer: B. single fertilization
99. Female gametophyte of Pinus contains:
Answer: B. archegonia
100. In Pinus the pollen tube enters the ovule through the:
Answer: B. micropyle
About Biology Class 11 Unit 8 MCQs (Federal Board)
These 201 Biology MCQs cover Class 11 Unit 8: Plantae of the Federal Board (FBISE) HSSC-I (1st Year / Class 11) syllabus. They are SLO-based MCQs as per the new pattern for FBISE exams. Each question has four options and the correct answer is shown, so you can practise for the annual examination and find the topics you still need to revise. The questions are split over 5 pages of 50. Use the Print button to save this chapter as a PDF.