Diversity of Plant Life MCQs Part 7

1) Nonflagellate amoeboid gametes of Spirogyra are
a) Zoogametes
b) Aplanogametes
c) Planogametes
d) Zoidiogametes

2) Bryophytes have great
a) Ecological importance
b) Economic importance
c) Aesthetic value
d) Medicinal value

3) Pith is absent in the
a) Siphonostele
b) Solenostele
c) Protostele
d) Dictyostele

4) The sex organs present on the ventral surface of fern prothallus and intermingled with rhizoids are
a) Antheridia
b) Archegonia
c) Sori
d) Ascogonia

5) Botanical snakes are
a) Algae
b) Fungi
c) Bryophytes
d) Pteridophytes

6) The endodermis is trabecular in the
a) Capsule axis of moss
b) Stem of Pinus
c) Stem of Selaginella
d) Stem of fern

7) The prothallus (gametophyte) gives rise to a fern plant (sporophyte) without fertilization. It is called
a) Apospory
b) Apogamy
c) Parthenocarpy
d) Parthenogenesis

8) Formation of the gametophyte directly from the sporophyte is called
a) Apogamy
b) Apospory
c) Apocarpy
d) Parthenogenesis

9) The foliar gap in the vascular cylinder of ferns is a/an
a) Exclusive phloem area
b) Exclusive xylem area
c) The foliar gap in the vascular cylinder of ferns is Parenchymatous zone
d) Air space

10) The time interval between pollination and fertilization in Cycas is
a) One month
b) 2-3 months
c) 4-5 months
d) 6-12 months

11) The Monkey Puzzle Tree is
a) Pinus roxburghii
b) Cycas revoluta
c) Gnetum gnemon
d) Araucaria imbricata

12) Cycas contains
a) Mucilage ducts
b) Laticiferous vessels
c) Resin ducts
d) Oil ducts

13) A leaf of Cycas is supplied with
a) Two girdle and two direct traces
b) Two girdle and a number of direct traces
c) Several girdle traces and several direct traces
d) Several girdle traces and direct traces

14) Cedar wood oil is extracted from the heart wood of
a) Cedrus deodara
b) Thuja occidentalis
c) Juniperus virginiana
d) Magnolia species

15) Pollen grain of Cycas are shed at stage
a) One-celled
b) Two-celled
c) Three-celled
d) Four-celled

16) The largest spermatozoids are those of
a) Pinus
b) Selaginella
c) Dryopteris
d) Cycas

17) In Cycas, pollination is by
a) Wind
b) Insect
c) Water
d) Both A and B

18) Cycas is a living fossil as it has
a) Ciliated sperms
b) Structure like that of Tree Fern
c) Restricted occurrence in certain areas
d) Been found in fossil state also

19) The seed habit became established first in
a) Bryophytes
b) Pteridophytes
c) Cycadofilicales
d) Gnetales

20) The suffix “sperm” in gymnosperms and angiosperms indicates
a) Sporophylls
b) Ovules and seeds
c) Motile sperms
d) Nonmotile sperms

21) Ulothrix is an
a) Attached unbranched filament
b) Attached branched filament
c) Colonial algae
d) Free floating

22) Cells of Ulothrix are
a) Round
b) Spherical
c) Cylindrical
d) Rectangular

23) In Riccia/Bryophytes
a) The sporophyte is parasitic on the gametophyte
b) The gametophyte is parasitic on the sporophyte
c) The sporophyte is independent of the gametophyte
d) The sporophyte is a semiparasite

24) Spores of Riccia are liberated by
a) Peristome teeth and seta
b) Shrinkage of annulus and explosion of capsule
c) Death and decay of thallus and external pressure on calyptra
d) Xerochasy of elaters

25) In eusporangiate ferns, the sporangia develop from a
a) Group of initials
b) Single initials
c) 1-4 spores
d) Few to large number of spores

26) Funaria is fixed to the substratum by
a) Unicellular simple rhizoids
b) Multicellular branched oblique septate rhizoids
c) Branched coenocytic rhizoids
d) Tuberculate rhizoids

27) Which is the walking fern?
a) Adiantum
b) Pteridium
c) Pteris
d) Marsilea

28) The epidermis of the axis/stem of Funaria shows
a) Absence of cuticle
b) Absence of stomata
c) Presence of cuticle but absence of stomata
d) Both A and B

29) A 13-celled male gametophyte of Selaginella has
a) 12-celled antheridium +1 prothallial cell
b) 9-celled antheridium +4 prothallial cells
c) 7-celled antheridium +6 prothallial cells
d) 10-celled antheridium +3 prothallial cells

30) The young sporophyte of a fern draws nourishment from the prothallus through its
a) Rhizoids
b) Roots
c) Foot
d) Haustorium

31) Male gametes of cycads are
a) Rounded and nonciliate
b) Sickle-shaped biflagellate
c) Boat-shaped noncilliate
d) Large, top-like, spirally twisted with cilia

32) Resin and turpentine are obtained from
a) Cycas
b) Pinus
c) Cedrus
d) Abies

33) Leafy gametophytes occur in
a) Pteridophytes
b) Gymnosperms
c) Bryophytes
d) Angiosperms

34) Independent alternation of generations is present in
a) Angiosperms
b) Gymnosperms
c) Pteridophytes
d) Bryophytes

35) In Ulothrix/Spirogyra, reduction division (meiosis) occurs at the time of
a) Gamete formation
b) Zoospore formation
c) Zygospore germination
d) Vegetative reproduction

36) A highly thickened nonmotile spore is
a) Macrozoospore
b) Microzoospore
c) Aplanospore
d) Hypnospore

37) Fucoxanthin occurs in
a) Cyanophyceae
b) Rhodophyceae
c) Chlorophyceae
d) Phaeophyceae

38) An alga which can be possibly used in space flight (Space Alga) is
a) Nostoc
b) Chlorella
c) Ulothrix
d) Spirogyra

39) The chloroplast of Ulothrix is
a) Stellate
b) Laminate
c) Ribbon – shaped and spirally coiled
d) Girdle-shaped

40) Chloroplast of Chlamydomonas is
a) Stellate
b) Cup-shaped
c) Collar – shaped
d) Spiral

41) The plant in which the sporophytic phase is represented by the zygote only is
a) Pinus
b) Selaginella
c) Chlamydomonas
d) Funaria

42) Moss protonema resembles — in structure:
a) Multicellular green algae
b) Hypha of Rhizopus
c) Unicellular structure of Acetabularia
d) None of the above

43) Rhizoids of Funaria are
a) Colourless, multicellular with transverse septa
b) Colourless, multicellular with oblique septa
c) Colourless and unicellular
d) Coloured and multicellular

44) The sporophyte of Funaria contains columella which is
a) Sterile and lateral
b) Fertile and lateral
c) Fertile and middle
d) Sterile and middle

45) In moss, stomata occur on the
a) Stem
b) Leaves
c) Capsule
d) All the above

46) Bryophytes grow in moist and shady habitats because
a) Water absorbing system is absent
b) They are aquatic
c) They cannot grow on land
d) They require water for their fertilization

47) Pteridophytes differ from bryophytes and thallophytes in having
a) Vascular tissues
b) Motile antherozoids
c) Archegonia
d) Alternation of generations

48) The mature archegonium of Fern attracts antherozoids chemotactically by means of
a) Soluble proteins
b) Sugar
c) Malic acid
d) Citric acid

49) Fern gametophyte is nutritionally a
a) Sporophyte
b) Parasite
c) Chemoautotroph
d) Photoautotroph

50) Fern gametophyte is a
a) Multicellular, cordate prothallus
b) Liver-shaped thallus
c) Unicellular, colourless
d) Filamentous, multicellular and green

51) Winged pollen grains are found in
a) Cycas
b) Mango
c) Pinus
d) Dryopteris

52) In Pinus/Cycas/gymnosperms, the endosperm is
a) A sporophytic structure
b) A gametophytic structure
c) A new structure
d) Formed after fertilisation

53) In Cycas, the endosperm is
a) A sporophytic structure
b) A gametophytic structure
c) Newly formed
d) Formed after fertilisation

54) A character present in coralloid roots and absent in dicot roots is the
a) Algal zone
b) Xylem
c) Cortex
d) Pith

55) Cycas and ferns resemble each other in possessing
a) Circinate vernation
b) Pollen tube
c) Ovule
d) Seeds

56) Turpentine is got from
a) Angiospermous wood
b) Angiospermous flowers
c) Gymnospermous wood
d) Ferns

57) External water is not required for fertilization in
a) Fern/Selaginella
b) Moss/Riccia
c) Ulothrix
d) Gymnosperms/Maize

58) Neck canal cell is absent in the archegonium of
a) Funaria
b) Cycas
c) Dryopteris
d) All pteridophytes

59) The female cone of Pinus develops seeds in
a) One year
b) Two years
c) Three years
d) Four years

60) Pinus produces
a) No seeds
b) Flowers
c) No vascular tissues
d) Naked seeds in cones

61) Coralloid roots of Cycas possess the symbiotic algae
a) Aulosira
b) Spirogyra
c) Ulothrix
d) Anabaena

62) Coralloid roots help Cycas in
a) Fixation and absorption of nitrogen
b) Absorption of water
c) Absorption of minerals
d) Respiration

63) Which one is common to Pinus and Dryopteris?
a) Presence of antheridia and archegonia
b) Presence of pollen tube
c) Absence of seeds
d) Absence of fruits

64) The plant body of pteridophytes is
a) Sporophyte
b) Gametophyte
c) Prothallus
d) All the above

65) The sterile uniseriate and multicellular hair present in the receptacles of moss is the
a) Epiphysis
b) Paraphysis
c) Apophysis
d) Hypophysis

66) During reproduction, Chlamydomonas
a) Loses its flagella and becomes nonmotile
b) Loses its flagella and comes to rest
c) Retains flagella and starts swimming
d) Retain flagella and starts dividing

67) Two algae which produce agar-agar are
a) Nostoc and Anabaena
b) Volvox and Vanchesia
c) Gracilaria and Gelidium
d) Harveyella and Porphrya

68) A colourless parasitic red algae is
a) Porphyra
b) Harveyella
c) Batrachospermum
d) Chondrus

69) Pyrenoids are the centre for formation of
a) Proteins
b) Enzymes
c) Fat
d) Starch

70) Pinus differs from Mango in having
a) Tree habit
b) Green leaves
c) Ovules not enclosed in ovary
d) Wood

71) In Funaria/bryophytes
a) The sporophyte is dependent upon the gametophyte
b) The gametophyte is dependent on the sporophyte
c) Both the gametophyte and the sporophyte are dependent upon each other
d) The gametophyte and the sporophyte are independent of each other

72) Tea and Coffee leaves are infected by the parasitic algae
a) Cephaleuros
b) Sargassum
c) Oedogonium
d) Ulothrix

73) Male gametes are multiflagellate in
a) Funaria
b) Riccia
c) Fern
d) Selaginella

74) In a Selaginella stem, trabeculae represent modified
a) Phloem cells
b) Endodermal cells
c) Pericycle cells
d) Cortical cells

75) The number of prothallial cells in the male gametophyte of Selaginella is
a) One
b) Two
c) Three
d) Four

77) The secondary wood of Pinus contains
a) Vessels
b) Resin ducts
c) Resin cells
d) Companion cells

78) Archegoniatae include
a) Bryophytes, Pteridophytes and Gymnosperms
b) Pteridophytes, Gymnosperms and Angiosperms
c) Algae, Fungi and Bryophytes
d) Algae, Fungi and Bacteria

79) In Ulothrix, the cell contains
a) A chloroplast with many pyrenoids
b) A chloroplast with a few pyrenoids
c) A few chloroplasts with a few pyrenoids
d) Many chloroplasts with a few pyrenoids

80) A unique features of bryophytes is that they
a) Produce spores
b) Have a sporophyte attached to the gametophyte
c) Lack roots
d) Lack vascular tissues

81) In chlorophyceae, sexual reproduction occurs by
a) Isogamy and anisogamy
b) Isogamy, anisogamy and oogamy
c) Oogamy only
d) Anisogamy and oogamy

82) Which one of the following cannot fix nitrogen?
a) Nostoc
b) Azotobacter
c) Spirogyra
d) Anabaena

83) Gametes fail to fuse in Chlamydomonas. The process is
a) Isogamy
b) Anisogamy
c) Syngamy
d) None of the above

84) Meiosis occurs in the zygote of
a) Funaria
b) Chlamydomonas
c) Dryopteris
d) Puccinia

85) The time interval between pollination and fertilization in Pinus is
a) A four hours
b) A few days
c) A few weeks
d) About a year

86) The number of cotyledons in Zea, Cycas and Pinus are respectively
a) 1, 2, 2
b) 1, 1, 2
c) 1, 2, many
d) 2, 2, many

87) In spirogyra, sexual reproduction involves fusion of
a) Two similar nonmotile gametes
b) Two dissimilar motile gametes
c) One motile and one nonmotile gamete
d) Two similar motile gametes

88) Meiosis occurs in Funaria in the
a) Archegonial cells
b) Spore mother cells
c) Zygotic cells
d) Antheridial cells

89) Which is gametophytic in Pinus?
a) Male and female cones
b) Micro and mega-spores
c) Zygote
d) Pinus Plant

90) The male cone of Pinus is made of
a) Anthers
b) Ligules
c) Microsporophylls
d) Megasporophylls

91) Zygotic meiosis occurs in
a) Algae
b) Gymnosperms
c) Angiosperms
d) Pteridophyta

92) The juvenile state of the moss plant is the
a) Protonema
b) Capsule
c) Prothallus
d) All the above

93) In Ulothrix, sexual reproduction is by
a) Isogamy
b) Anisogamy
c) Oogamy
d) Conjugation

94) Pinus pollen is
a) Nonwinged
b) Rounded
c) Winged
d) Ovoid

95) An archegonium of Riccia has
a) 4 neck canal cells, 1 venter canal cell and one oosphere
b) 4 neck canal cells, 2 venter canal cells one Oosphere
c) 4 neck canal cells, one venter canal cell and two oosphere
d) 6 neck canal cells, 2 venter canal cells and one oosphere

96) The first division in the zygote of Selaginella is
a) Transverse
b) Longitudinal
c) Oblique
d) Both A and B

97) Algae are included in
a) Tracheophytes
b) Embryophytes
c) Cormophytes
d) Thallophytes

98) The multicellular jacketed female sex organ of Bryophytes is the
a) Archegonium
b) Carpogonium
c) Ascogonium
d) Trichogyne

99) Gemma for vegetative reproduction occurs in
a) Funaria
b) Fern
c) Marchantia
d) Riccia

100) Sexual reproduction of Spirogyra is morphologically
a) Oogamy
b) Isogamy
c) Anisogamy
d) Both isogamy and oogamy

Answers

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