PLANT KINGDOM
Q1.Life cycle of Polysiphonia and Chlamydomonas are respectively
(1) Haplontic and diplontic
(2) Diplontic and haplodiplontic
(3) Haplodiplontic and diplontic
(4) Haplodiplontic and haplontic
Ans.4
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Q2. All seed bearing plants have/show
(1) Meiosis in zygote
(2) Single to few celled haploid gametophytes
(3) Multicellular and independent gametophytes
(4) Alternation of dominant
gametophyte with short lived
multicellular sporophyte.
Ans.2
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Q3.State true (T) or false (F) for the
given statements and choose the correct option
a. Eucalyptus is one of the tallest
plant species
b. Primary endosperm nucleus (PEN)
of angiosperms is a triploid structure
c. Embryo sac is a 3-celled structure
a. b. c
(1) T T. T
(2) F F. T
(3) T T. F
(4) F T. F
Ans.3
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Q4. Coralloid roots
(1) Have symbiotic association
with Rhizobium for N₂-fixation
(2) Have fungal association
(3) Are associated with N₂-fixing cyanobacteria
(4) Are found in Pinus
Ans.3
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Q5. Double fertilisation is an event
unique to
(1) Gymnosperms
(2) Angiosperms
(3) Pteridophytes
(4) Bryophytes
Ans.2
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Q6.Read the following statements
a.Ovules are not enclosed by ovary wall.
b.Leaves are well adapted to
withstand extremes of
temperature, humidity & wind.
c.Embryo sac represents the
female gametophyte
d.The ovules are borne on mega- sporophylls which may be clustered
to form the female cone.
How many of the above statements are correct regarding gymnosperms?
(1) One
(2) Two
(3) Three
(4) Four
Ans.3
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Q7. Which one of the following pair
is wrongly matched?
(1)Gymnosperms-Homosporous plants
(2)Cycas - Pinnate leaves
(3)Angiosperms-Non-archegoniate
phanerogams
(4) Sequoia-Tallest gymnosperm
Ans.1
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Q8. Which of the following plants
belongs to the class Pteropsida?
(1) Equisetum
(2) Adiantum
(3) Selaginella
(4) Psilotum
Ans.2
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Q9.In pteridophytes, the main plant
body is
(1) Thalloid gametophyte
(2) Thalloid sporophyte
(3) Gametophyte which is differen-
tiated into root, stem & leaves
(4) Sporophyte which is differen-
tiated into root, stem & leaves
Ans.4
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Q10. Bryophytes are called
amphibians of plant kingdom
because
(1) They play an important role
during succession on bare rocks
(2) They lack roots, stems or leaves
(3) They are dependent on water
for sexual reproduction
(4) They are more differentiated
than that of algae
Ans.3
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