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Biology
TOPIC : Plant Kingdom
Date :
Marks : 120 mks | Time : ½ hr
1. Which out of the following are included under tracheophyta i.e. vascular plants?
(a) Pteridophytes (b) Gymnosperms (c) Angiosperms
(d)All of these
2. Which of the following pigments are found in brown algae?
(a) Chl a, Chl c (b) Chl a , Chl d (c) Chl a , Chl c and fucoxanthin (d) Chl a , phycoerythin
3. Fusion of two gametes which are dissimilar in size are termed as
(a) Oogamy
(b) Isogamy (c) Anisogamy
(d)All of these
4.Select the incorrect statement regarding reproduction in Rhodophyceae.
a) Asexual reproduction occurs by non-motile spores
b) Sexual reproduction occurs by motile gametes
c) Sexual reproduction is oogamous
d) Complex post-fertilization developmental events occur
5. The embryonic development in bryophytes takes place in the
a) Protonema
(b)Sporangium (c) Antheridium (d) Archegonium
6.Funaria requires water because
(a) Fertilization occurs in water only (b)Funaria is a hydrophyte
(b) Plants need water for gametogenesis (c)Gametangia cannot develop without water
7. A moss sperm moves by means of
(a) Pseudopodia (b)Cilia (c)Flagella
(d)Any of these
8. In Funaria , the haploid structure is
(a) Protonema (b)Capsule (c)Columella
(d)Seta
9. Select the correct pattern of arrangement of reproductive structures of gymnosperms
a) SporesSporophylls Sporangia Strobili
b) Spores SporangiaSporophylls Strobili
c) Sporangia Sporophylls Spores Strobili
d) Spores Sporangia StrobiliSporophylls
10. Mycorrhizal roots of _______ have symbiotic association with 𝑵𝟐 – fixing cyanobacteria.
(a) Pinus (b) Cedrus (c)Cycas (d)Ginkgo
11. Plants which possess seeds but not fruits are
(a) Bryophytes (b)Pteridophytes (c)Gymnosperms (d)Angiosperms
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Biology
12. In double fertilization , one male gamete fuses with (i) to form zygote and the other male gamete fuses with
(ii) to form primary endosperm nucleus
(a) Synergids (n), antipodals (n)
(b) Egg (n) , antipodals
(c) Egg(n) , secondary nucleus (2n) (d)Egg (n), synergids (n)
13. Angiosperms A and B shown in the figure belong to the class ____ and ______ respectively
a)
b)
c)
d)
A
B
Dicotyledonae
Monocotyledonae
Monocotyledonae
Dicotlydonae
Monocotyledonae Monocotyledonae
Dicotyledonae
Dicotyledonae
14. Haplontic life cycle generally occurs in
(a) Most algae
(b)Bryophytes (c)Pteridophytes
(d)Gymnosperms
15. If the diploid number of a flowering plant is 36, what would be the chromosome number in its endosperm ?
a) 36
(b)18
(c)54
(d)72
16.Which one is a parasitic algae
(a) Vaucheria (b)Polysiphonia (c)Cephaleuros (d)Batrachospermum
17.The simplest green plants are
(a) Yeast
(b) Bacteria (c)Algae
(d)Lactobacillus
18.Thallophyta includes
(a) Fungi and bryophyta (b) Algae and bryophyta
(c) Algae, fungi and bryophyte (d) Algae and fungi
19.In Spirogyra during the germination of zygospore how many haploid nuclei take part
(a) One
(b) Two (c) Three (d)All four
20. The product of conjugation of Spirogyra is called
(a) Zoospore (b) Akinete
(c) Chlamydospore (d) Zygospore
21.Meiosis in Ulothrix takes place during
(a) Zoospore formation (b) Gamete formation
(c)Zygote germination
(d)Zoospore germination
22.Female reproductive part of bryophytes is
(a) Antheridium (b) Oogonium (c) Archegonium (d) Sporangium
23.Which place in India is called "The Golden Mine of Liverworts"
(a) Eastern Himalayas (b) Western Himalayas (c) Western Ghats
24.Protonema is
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(d) Eastern Ghats
Biology
(a)Fossil pteridophyte
(b) A part of the sporophyte of Funaria
(c)The juvenile phase of the moss gametophyte (d) None of the above
25.The peristome of Funaria has
(a) 4 teeth in one ring (b) 32 teeth in 2 rings
(c)16 teeth in one rings (d) 16 teeth in 2 rings
26. In Riccia/ Bryophytes
(a) Sporophyte is parasitic over gametophyte
(c)Sporophyte is independent of gametophyte
(b) Gametophyte is parasitic over sporophyte
(d) Sporophyte is semiparasite
27.Neck canal cells in Dryopteris are
(a) One with two nuclei (b)Two
(c)One with one nucleus (d)Four
28.Gymnosperms are called naked seed plants because these lack
(a) Cotyledon
(b) Endosperm
(c)Ovary wall
(d) Testa
29.In which class of gymnosperms, fossils are present
(a) Cycadophyta
(b) Coniferophyta
(c) Gnetopsida
(d) Both (a) and (b)
30.In gymnosperms how many male gametes are produced by each pollen grain
(a) 4 (b) 3 (c) 2 (d) 1
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Biology
Answers
1. (d)
2. (c)
3. (c)
4. (b) Sexual reproduction is oogamous. The male sex organ is called spermatangium or antheridim. It produces
nanflagellate male gamete known as spermatium. The female se organ is flask shaped and is termed carpogonium.
Carpogonium possesses an eiongated receptive organ named trichogyne spematia are carried by water current to trichogyne
tips for effective fertilization. The female sex organ remains attached to the plant and forms a new structure called
carposporophyte.
5. (d) in bryophytes, the zygote develops into a multicellular, undifferentiated structrure called embryo. The embryo within
venter of archegorium, by further segmentation and differentiation finally develops into a full fledged sporophyte called
sporogonium.
6. (a) Fertilization of funaria occurs in water. The antherozoids are released into water where they swin and reach
archegonium. An antheozoid fuses with the egg to produce the zygote. Thus an external layer of water is essential for the
swimming of male gametes to the archegonia.
7. (c)
8. (a)
9. (d) Main plant body is gametophytic in bryophytes and sporophytic in ptecidophytes.
10.(b) Gymnosperms are hetersporous, i.e., produce two defferent kinds of spores – the male (microspores) and the female
(megaspores). The spores are borne inside the sporangia. The two types of sporangia (microsporangia and megasporangla)
are borne on special leaf-like structures called microsporophylis and megasporophylis respectively. The sporophylis are
usually aggregated in the form of compact structures called cones or strobli. The cones are generally unisexual i.e., the male
cones are microsporanglate and the female cones are megasporangiate.
11. (a) A mycorhiza is a symbiotic association of a fungas with a root system. The mycorrhizal roots of pinus occur near the
soil surface. They are devoid of root hair and roes cap. The fungus commonly associated with mycorhizic roots of pinus is
Boletus elegans.
12. (c) Gymnosperms are those seed plants in which the seeds remain exposed over the surface of the megaspocophyls
because the latter are not folded to form pistils and thus lack ovary. Flowers are absent and thus fruits are not formed.
13. (c) Double fertilization is a process unique to flowering plants in which two male gamete nuclei, which have travelled
down in the pollen tube separately fuse with different female nuclei in the embryo sac. The first male nucleus fuses with egg
cell to form the zygote, the second male nucleus fuses with the two polar nuciel or secondary nucleus to form a triploid
nucleus that develops into the endosperm.
14. (b) Zoomed in portions of leaves show parallel venation in plant A, a characteristic of monocotyledonae except for a few
and reticulate venation in plant B, a characteristic of dicotyledonae.
15. (a) In hoploctic life cycle, sporophytic generation is rpresented only by the one-called zygote. There are no free-living
sporophytes. Meiosis in the zygote results in the formation of haploid spores. The haploid spores divide mitotically and form
the gametophyte. The dominant, photosynthetic phase in such plant is the free-living gametophyte. Many algae such as
Volvox, Spirogyra and some species of Chlamydomonas represent this pattern.
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Biology
16. (c)
17. (c)
18. (b)
19. (a)
20. (d)
21. (c)
22. (c)
23. (b)
24. (c)
25. (b)
26. (a)
27. (a)
28. (a)
29. (d)
30. (a)
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