Diversity of Plant Life MCQs Part VI

1) The carrying of male gametes near female gametes by a pollen tube is called
a) Porogamy
b) Chalazogamy
c) Siphonogamy
d) Mesogamy

2) Bryophytes live in habitats that are
a) Saline
b) Dry
c) Moist
d) Exposed

3) Female gametophyte of Pinus differs from that of an angiosperm in
a) Being triploid
b) Little growth
c) Possession of archegonia
d) Being closed in fruit

4) Siphonogamy occurs in
a) Gymnosperms
b) Monocots
c) Dicots
d) All the above

5) Bryophytes seldom reach a height of more than 20 cm because they
a) Lack a vascular system
b) Lack roots
c) Lack mechanical tissues
d) All the above

6) Tracheophyta is a sporophyte characterised by
a) Root, stem and leaves
b) Independent sporophyte
c) Vascular tissue for transport of substances
d) Independent gametophyte

7) Sporangia of conifers are located in/on
a) Axils of leaves
b) Axils of branches
c) Dwarf shoots
d) Scales of the cones

8) In angiosperms, the endosperm is
a) The persistent female gametophyte
b) Formed after fertilization
c) Formed before fertilization
d) Short lived

9) In a gymnosperm, the endosperm
a) Develops without fertilization
b) Forms after fertilization but does not require triple fusion
c) Is diploid
d) Is short-lived

10) Calyptra around the sporophyte of a bryophyte is derived from the
a) Columella
b) Antheridium
c) Archegonium
d) Capsule

11) The gametophyte in the life cycle of a fern is
a) Independent and autotrophic
b) Inconspicuous and nutritionally dependent on parent
c) Differentiated into male and female
d) Both B and C

12) Sexual reproduction in Spirogyra is
a) Morphological isogamy but physiologically anisogamy
b) Morphological anisogamy but physiological isogamy
c) Both morphological as well as physiological isogamy
d) Both morphological and physiological anisogamy

13) The basal cell of Ulothrix is
a) Extra green
b) Colourless
c) Full of reserve food
d) Without a nucleus

14) The storage product of rhodophyceae is
a) Glycogen
b) Chrysolaminarin
c) Starch
d) Floridean starch

15) A plant in which the sporophytic generation is represented by a zygote only is
a) Pinus
b) Selaginella
c) Chlamydomonas
d) Dryopteris

16) An eye spot is found in the plant body of
a) Ulothrix
b) Ulva
c) Chlamydomonas
d) Spirogyra

17) Phycoerythrin is found in
a) Fucus
b) Sargassum
c) Oedogonium
d) Polysiphonia

18) The product of conjugation in spirogyra
is the

a) Zygospore
b) Zoospore
c) Oospore
d) Carpospore

19) The common mode of sexual reproduction in Chlamydomonas is
a) Isogamous
b) Anisogamous
c) Oogamous
d) Hologamous

20) An alga showing scalariform conjugation is
a) Oedogonium
b) Spirogyra
c) Chlamydomonas
d) Ulothrix

21) A red alga devoid of red colour is
a) Chondrus
b) Batrachospermum
c) Gelidium
d) Porphyra

22) A chlorophyll found in Phaeophyceae but absent in Rhodophyceae is
a) Chlorophyll c
b) Chlorophyll d
c) Chlorophyll b
d) Chlorophyll a

23) The science of algae is
a) Phycology
b) Mycology
c) Oceanology
d) Microbiology

24) The female sex organ in Rhodophyceae is called a
a) Trichogyne
b) Ascogonium
c) Carpogonium
d) Carpogonium

25) Sexual reproduction involving the fusion of two cells of Chlamydomonas is
a) Isogamy
b) Homogamy
c) Somatogamy
d) Hologamy

26) Protonema occurs in the life cyle of
a) Riccia
b) Funaria
c) Dryopteris
d) Spirogyra

27) The plant body of Riccia is the
a) Sporophyte
b) Gametophyte
c) Aquatic
d) Antheridium

28) On germination a moss spore produces a
a) Protonema
b) Leafy gametophyte
c) Sporogonium
d) Sporophyte

29) The plant group that produces spores and embryo but lacks vascular tissues
and seeds is

a) Pteridophyta
b) Rhodophyta
c) Bryophyta
d) Phaeophyta

30) Which one of the following is not common to Funaria and Selaginella?
a) Archegonium
b) Embryo
c) Flagellate sperms
d) Roots

31) In Riccia/Marchantia the rhizoids are
a) Branched unicellular
b) Branched multicellular
c) Unbranched multicellular
d) Unbranched unicellular

32) Which one has the largest gametophyte?
a) Cycas
b) Angiosperm
c) Selaginella
d) Moss

33) The apophysis in the capsule of Funaria is the
a) Lower part
b) Upper part
c) Middle part
d) Fertile part

34) In bryophytes/Funaria the sperms are
a) Quadriflagellae
b) Biflagellate and bent
c) Biflagellate and spirally coiled
d) Nonflagellate

35) The structure that ruptures causing dehiscence in the moss capsule is the
a) Operculum
b) Annulus
c) Peristome
d) Calyptra

36) Bryophytes are amphibians because
a) They require a layer of water for carrying out sexual reproduction
b) They occur in damp places
c) They are mostly aquatic
d) All the above

37) The gametophyte of Funaria is
a) dioecious and autoicous
b) Monoecious and autoicous
c) Monoecious and heteroicous
d) Dioecious and heteroicous

38) The moss peristome takes part in
a) Spore dispersal
b) Photosynthesis
c) Protection
d) Absorption

39) The kidney-shaped soral covering in Dryopteris is the
a) Ramentum
b) Placenta
c) Indusium
d) Sporophyll

40) A fern differs from a moss in possessing an
a) Swimming/flagellate antherozoids
b) A flask-shaped archegonia
c) An independent sporophyte
d) An independent gametophyte

41) Pteridophytes differ from bryophytes in possessing
a) A gametophyte dependent on the sporophyte
b) An independent gametophyte and sporophyte
c) A sporophyte dependent on the gametophyte
d) No sporophyte

42) Pteridophytes differ from mosses/bryophytes in possessing a/an
a) Independent gametophyte
b) Well developed vascular system
c) Archegonia
d) Flagellate spermatozoids

43) The spore of a fern belongs to the
a) Sporophytic stage
b) Both sporophytic and gametophytic stages
c) Diplophase
d) Gametophytic stage

44) Azolla/Marsilea is a
a) Liverwort
b) Moss
c) Tree fern
d) Water fern

46) If sperms of both Funaria and Pteris were released together
near the archegonia of Pteris, only its sperms enter the archegonia because

a) Pteris archegonia repel Funaria sperms
b) Funaria sperms get killed by Pteris sperms
c) Funaris sperms are less mobile
d) Pteris archegonia releases a chemical to attract its sperms

47) The fern rhizome is a
a) Root
b) Stem
c) Rhizophore
d) Rhizoid

48) In Selaginella, the megasporophyll is comparable to which structure in

a) Stamen
b) Leaf
c) Carpel
d) Ovule

49) In ferns, fertilization does not involve
a) A pollen tube
b) Archegonia
c) Flagellate antherozoids
d) Water

50) Young fern leaves are protected by
a) An indusium
b) The rhizome
c) Ramenta
d) Sori

51) Pinus is a gymnosperm because it
a) Bears pollen grains
b) Is a large tree growing in colder areas
c) Lacks ovary but possesses exposed ovules
d) Possesses vascular tissues

52) The number of integuments present in the ovule of Pinus/Cycas is
a) Two
b) Three
c) One
d) Four

53) Gymnosperms do not bear fruits because they
a) Do not have an ovary
b) Do not have pollination
c) Are seedless plants
d) Do not have the mechanism of fertilization

54) Gymnosperms do not have
a) Xylem vessels and sieve tubes
b) Tracheids and sieve tubes
c) Vessels, sieve tubes and companion cells
d) Tracheids and companion cells

55) A plant having seeds but not flowers and fruits belongs to
a) Pteriodophytes
b) Mosses
c) Angiosperms
d) Gymnosperms

56) Gymnosperms differ from angiosperms in their
a) Seeds
b) Stelar system
c) Naked ovules
d) Sporophylls

57) In Pinus, the haploid structures are
a) Megaspore, endosperm and embryo
b) Megaspore, pollen grain and endosperm
c) Megaspore, integument and root
d) Pollen grain, leaf and root

58) Which is not a characteristic feature of Cycas?
a) Naked ovules
b) Circinate vernation
c) Vessels
d) Girdling leaf traces

59) Cycas has the largest
a) Ovule
b) Egg
c) Sperm
d) All the above

60) Cycas is
a) Hermaphrodite
b) Dioecious
c) Monoecious
d) None of the above

61) Gymnosperms do not have an
a) Antheridium
b) Ovule
c) Archegonium
d) Egg

62) Coralloid roots occur in
a) Pinus
b) Ferns
c) Cycas
d) Mosses

63) Pinus has one of the following traits
a) There are no vascular tissues
b) Seeds are borne on cones
c) It bears flowers
d) Seeds are borne inside fruits

64) The spermatozoid of Cycas is
a) Biflagellate
b) Nonflagellate
c) Uniflagellate
d) Multiflagellate

65) In Pinus, the pollen grain has 6 chromosomes. What is the number of
chromosomes in its endosperm?

a) 12
b) 18
c) 6
d) 24

66) Angiosperms differ from gymnosperms in having
a) Vessels
b) Eggs
c) Seeds
d) Tracheids

67) Carrageenin, a jelly-like substance, is obtained from a marine algae called
a) Irish Moss/Chondrus
b) Kelp
c) Sargassum
d) Fucus

68) Ulothrix occurs mostly in
a) Running fresh water
b) Stagnant fresh water
c) Running salt water
d) Stagnant salt water

69) Gulf Weed is
a) Chlamydomonas
b) Fucus
c) Sargassum
d) Batrachospermum

70) The main plant body of Bryophytes is
a) Autoecious
b) Sporophytic
c) Gametophytic
d) Heteroecious

71) Plants having (spores), xylem and phloem but lacking seeds are
a) Bryophytes
b) Gymnosperms
c) Pteridophytes
d) Angiosperms

72) In Pteridophytes/Dryopteris meiosis occurs at the time of
a) Gamete formation
b) Spore formation
c) Formation of prothallus
d) Formation of sex organs

73) Which one is absent in the fern rhizome?
a) Vessels
b) Sieve cells
c) Phloem parenchyma
d) Tracheids

74) In a Dryopteris sporangium, the number of spores is
a) 64.
b) 32
c) 128
d) 16

75) Venation in fern is
a) Parallel
b) Reticulate
c) Closed dichotomous
d) Open furcate

76) The placenta in Dryopteris is the place of attachment of the
a) Ovules
b) Ramenta
c) Sporangia
d) Archegonia

77) In Dryopteris, the sori are borne
a) Laterally
b) Abaxially
c) Adaxially
d) Marginally

78) Cycas revoluta is the
a) Date palm
b) Sea palm
c) Royal palm
d) Sago palm

79) The wood of Cycas is
a) Monoxylic and manoxylic
b) Manoxylic and polyxylic
c) Diploxylic
d) Monoxylic

80) Amongst plants, the largest egg is found in
a) Pinus
b) Sequoia
c) Cycas
d) Drypoteris

81) Prothallial cells present in the male gametophyte of Pinus are
a) One
b) Two
c) Three
d) Four

82) The number of cotyledons in a Pinus seed are
a) One
b) Two
c) Three
d) Many

83) In Cycas, the ovules are attached to the megasporophyll
a) Laterally
b) Dorsally
c) Ventrally
d) Apically

84) The membrane covering a sporangial cluster on the fern leaf is the
a) Indusium
b) Sorus
c) Perichaetium
d) Stomium

85) A group of sporangia developing from a placenta and covered by an indusium is called
a) Ramenta
b) Sorus
c) Sporophyll
d) Cone

86) Meiosis is not involved in the formation of gametes from a
a) Fern sporangium
b) Promycelium
c) Protonema
d) Prothallus

87) The archegonial neck of Funaria is made of — vertical rows
a) Two
b) Four
c) Five
d) Six

88) The chlorophyll common to Phaeophyceae and Bacillariophyceae but absent
in Rhodophyceae is

a) Chlorophyll a
b) Chlorophyll c
c) Chlorophyll b
d) Chlorophyll e

89) A palmella stage occurs in
a) Spirogyra
b) Ulothrix/Chlamydomonas
c) Aspergillus
d) Funaria

90) In Spirogyra, out of four haploid nuclei formed during meiosis in zygospore
a) One survives
b) Two survive
c) Three survive
d) All the four survive

91) Agar-agar commonly used in bacterial cultures and medication is obtained

a) Sargassum
b) Gelidium
c) Ulothrix
d) Ulva

92) The red colour of red algae is due to
a) Carotenes
b) Xanthophylls
c) Phycoerythrin
d) Phycocyanin

93) Cells of two different filaments are involved in conjugation of Spirogyra.
The type of sexual reproduction is

a) Scalariform conjugation
b) Indirect lateral conjugation
c) Direct lateral conjugation
d) Terminal conjugation

94) Algae are important. We should study them because
a) They are good experimental materials
b) They may become an important constituent of future food for human beings
c) They can be easily grown in water tanks
d) They renew the oxygen of atmosphere and water

95) The number of flagella present in the gametes of Ulothrix is
a) Four
b) Three
c) One
d) Two

96) Pigments common to all algae are
a) Chlorophyll a and phycobilins
b) Chlorophyll a and carotenoids
c) Chlorophyll a and chlorophyll b
d) Chlorophyll a and carotenoids

97) The replicate septum of Spirogyra possesses a
a) Ring like outgrowth
b) Peg like protuberance
c) Perforation
d) H-shaped piece

98) Thin-walled nonciliate and nonmotile asexual spores are
a) Akinetes
b) Hypnospores
c) Hormogonia
d) Aplanospores

99) Chlorellin is obtained from the genus
a) Chlamydomonas
b) Chlorella
c) Chondrus
d) Batrachospermum

100) The accessory photosynthetic pigments of Algae are
a) Fucoxanthin
b) Phycocyanin
c) Phycoerythrin
d) All the above

Ans 1) c

Ans 2) c

Ans 3) c

Ans 4) d
Carrying of male gamates to the female gamete by a pollen tube is called

Ans Desc 4)
Carrying of male gamates to the female gamete by a pollen tube is called

Ans 5) d

Ans 6) c

Ans 7) d

Ans 8) b

Ans 9) a

Ans 10) c

Ans 11) a
Haploid spores formed in the sporangium of a fern plant develop as independent
haploid gametophyte

Ans Desc 11)
Haploid spores formed in the sporangium of a fern plant develop as independent
haploid gametophyte

Ans 12) a

Ans 13) b
Basal cell is the hold fast
Ans Desc 13)
Basal cell is the hold fast

Ans 14) d

Ans 15) c

Ans 16) c

Ans 17) d
Polysiphonia is a red algae
Ans Desc 17)
Polysiphonia is a red algae

Ans 18) a

Ans 19) a

Ans 20) b

Ans 21) b

Ans 22) a

Ans 23) a
It is a fresh water type
Ans Desc 23)
It is a fresh water type

Ans 24) c

Ans 25) d

Ans 26) b

Ans 27) b

Ans 28) a

Ans 29) c

Ans 30) d

Ans 31) d

Ans 32) d

Ans 33) a

Ans 34) b

Ans 35) b

Ans 36) a

Ans 37) b

Ans 38) a

Ans 39) c

Ans 40) c

Ans 41) b

Ans 42) b

Ans 43) d
Fern spore is haploid which develops into haploid gametophyte
Ans Desc 43)
Fern spore is haploid which develops into haploid gametophyte

Ans 44) d

Ans 45) a

Ans 46) d

Ans 47) b

Ans 48) c

Ans 49) a

Ans 50) c

Ans 51) c

Ans 52) c

Ans 53) a

Ans 54) c

Ans 55) d

Ans 56) c

Ans 57) b

Ans 58) c

Ans 59) d

Ans 60) b

Ans 61) a

Ans 62) c

Ans 63) b

Ans 64) d

Ans 65) c

Ans 66) a

Ans 67) a

Ans 68) a

Ans 69) c

Ans 70) c

Ans 71) c

Ans 72) b
Spores are formed in the sporangium after meiosis
Ans Desc 72)
Spores are formed in the sporangium after meiosis

Ans 73) a

Ans 74) a

Ans 75) d

Ans 76) c
Sporangia are formed within the sorus and attached on the placenta
Ans Desc 76)
Sporangia are formed within the sorus and attached on the placenta

Ans 77) b

Ans 78) d

Ans 79) b

Ans 80) c

Ans 81) d

Ans 82) d

Ans 83) a

Ans 84) a

Ans 85) b

Ans 86) d

Ans 87) d

Ans 88) b

Ans 89) b

Ans 90) a

Ans 91) b

Ans 92) c

Ans 93) a

Ans 94) b

Ans 95) d

Ans 96) b

Ans 97) a

Ans 98) d

Ans 99) b

Ans 100) d


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