Diversity of Plant Life MCQs Part 8

1) Moss plants develop from the
a) Oospores
b) Protonema
c) Antherozoids
d) Diploid spores

2) The fern plant is a
a) Diploid sporophyte
b) Diploid gametophyte
c) Haploid sporophyte
d) Haploid gametophyte

3) The time taken in Pinus from pollination to fertilization is
a) 4 months
b) 4 years
c) 15 months
d) 2 years

4) Pyrenoids are characteristically found in the chloroplasts of
a) Angiosperms
b) Pteridophytes
c) Algae
d) Fungi

5) Agar is commercially obtained from
a) Green Algae
b) Blue-green algae
c) Brown Algae
d) Red Algae

6) A well developed archegonium with a neck having 6 and 4 rows of neck cells occurs in
a) Pteridophytes and gymnosperms
b) Gymnosperms and flowing plants
c) Gymnosperms only
d) Bryophytes and pteridophytes

7) The moss plant is
a) A gametophyte
b) A sporophyte
c) Sometimes a gametophyte and sometimes a sporophyte
d) Predominantly a gametophyte with a sporophyte attached to it

8) Which one helps in spore dispersal in mosses?
a) Columella
b) Operculum
c) Peristome teeth
d) Apophysis

9) Which one controls the dehiscence of the sporangium in Dryopteris?
a) Annulus
b) Tapetum
c) Sorus
d) Indusium

10) The presence of ciliated antherozoids in Dryopteris indicates
a) Terrestrial habit
b) Aquatic ancestry
c) Both A and B
d) None of the above

11) Reproduction in Spirogyra is mostly by
a) Conjugation
b) Vegetative
c) Both A and B
d) None of the above

12) Giant algae/sea weeds belong to
a) Xanthophyceae
b) Phaeophyceae
c) Rhodophyceae
d) Chlorophyceae

13) Which is characteristic of Funaria?
a) Scalariform
b) Xylem
c) Elaters
d) Peristome

14) Floridean starch occurs in
a) Myxophyceae
b) Chlorophyceae
c) Rhodophyceae
d) Phaeophyceae

15) Which is not a fungal disease?
a) Rust of Coffee
b) Red rust of Tea
c) Rust of Wheat
d) White rust of cruciferae

16) The number of peristome teeth in Funaria capsule is
a) 16 in one whorl
b) 16 in two whorls
c) 32 in two whorls
d) 32 in one whorl

17) Sporophyte dependent on gametophyte occurs in
a) Algae
b) Pteridophytes
c) Fungi
d) Bryophytes

18) A pyrenoid consists of
a) Starch around protein
b) Protein around starch
c) Protein only
d) Starch only

19) The plant body is a thallus in
a) Gymnosperms
b) Algae
c) Bryophyta
d) Pteridophyta

20) Zygotic meiosis occurs in
a) Thallophyta
b) Pteridophyta
c) Gymnosperms
d) Angiosperms

21) Rhizoids in Riccia are
a) Unicellular smooth-walled
b) Unicellular tuberculate
c) Both smooth-walled and tuberculate unicellular
d) Multicellular smooth-walled and tuberculate

22) How many chloroplasts are present in a cell of Ulothrix?
a) 1
b) 2
c) 3
d) 4

23) Fern spermatozoids possess — flagella
a) Nil
b) One
c) Two
d) Numerous

24) A nutrient medium is made semisolid by adding
a) Pectin
b) Agar-agar
c) Sodium chloride
d) Water

25) The basal swollen part of the ligule of Selaginella is the
a) Glossopodium
b) Rhizopodium
c) Protonema
d) Hydathodes

26) Which is called pond scum?
a) Spirogyra
b) Ulothrix
c) Anabaena
d) Nostoc

27) The ladder-like structure in Spirogyra represents
a) Lateral conjugation
b) Scalariform conjugation
c) Direct conjugation
d) A sexual reproduction

28) The middle sterile part of the moss capsule is the
a) Columella
b) Foot
c) Spore sac
d) Protonema

29) The vascular bundles of Cycas are
a) Conjoint, collateral and closed
b) Conjoint, collateral and open
c) Conjoint, bicollateral and open
d) Conjoint, bicollateral and closed

30) Mark the similarity between gymnosperms and angiosperms:
a) Naked ovules
b) Polyembryony
c) Double fertilization
d) None of the above

31) Phycology deals with the study of
a) Algae
b) Fungi
c) Microbes
d) Bryophytes

32) An archegonium is absent in
a) Bryophyta
b) Pteridophyta
c) Thallophyta
d) Gymnosperms

33) Sieve tubes and companion cells are absent in
a) Angiosperms
b) Pea
c) Mango
d) Pteridophyta

34) The Riccia gametophyte develops from the spore and ends in the
a) Thallus
b) Capsule
c) Zygote
d) Spore

35) Gymnosperms are characterised by
a) Multiflagellate sperms
b) Naked seeds
c) Winged seeds
d) Seeds inside fruits

36) A gymnosperm leaf carries 16 chromosomes. The number of chromosomes in its endosperm
will be

a) 16
b) 23
c) 12
d) 8

37) Ribbon-shaped chloroplasts occur in
a) Chlamydomonas
b) Spirogyra
c) Ulothrix
d) Riccia

38) Gymnosperm seeds are naked due to lack of
a) Pericarp
b) Perianth
c) Nucellus
d) Integuments

39) In Pinus, male and female cones occur
a) On the same branch
b) On different branches of the same plant
c) On different plants
d) On the trunk

40) Microsporangia occur on the microsporophyll of Cycas on the
a) Abaxial side
b) Adaxial side
c) Axils
d) Margins

41) Maidenhair fern is
a) Araucaria
b) Thuja
c) Ginkgo
d) Pinus

42) Formation of an embryo without gametic union is
a) Apogamy
b) Apospory
c) Isogamy
d) Syngamy

43) In the life cycle of Funaria spores are the beginning of the — generation
a) Gametophytic
b) Sporophytic
c) Both A and B
d) Peristome

44) The plant body of Selaginella is the
a) Sporophyte
b) Gametophyte
c) Halophyte
d) Both B and C

45) Pinus is
a) Dioecious
b) Monoecious
c) Unisexual
d) Both A and B

46) Pinus seed is
a) Nonendospermic and monocotyledonous
b) Abaxial and rounded
c) Adaxial and endospermic
d) Hypogeal and nonendospermic

47) Heterospory and seed habit are exhibited by the non-flowering plant which also
possesses

a) Bract
b) Ligule
c) Petiole
d) Spathe

48) The botanical name of Sanjeevani is
a) Selaginella chrysocaulos
b) Selaginella bryopteris
c) Selaginella chrysorhizos
d) None of the above

49) Which is haploid in gymnosperms?
a) Pollen grain, megaspore and root
b) Megaspore mother cell, root and leaf
c) Endosperm, pollen grain and megaspore
d) Pollen grain, megaspore and nucellus

50) Thermal algae survive in
a) Low temperature
b)
c)
d) Frozen lakes and ocean

51) The ancestors of land plants possessed
a) Arboreal habit
b) Heterotrichous habit
c) Thorny habit
d) Prostrate habit

52) Calcium deposition and larvicidal properties are found in
a) Diatoms
b) Oscillatoria
c) Chara
d) Caulerpa

53) An algae rich in proteins is
a) Chlorella
b) Oscillatoria
c) Ulothrix
d) Spirogyra

54) The algae found in stagnant fresh water is
a) Sargassum
b) Laminaria
c) Polysiphonia
d) Spirogyra

55) Brown algae have a characteristic pigment called
a) Phycocyanin
b) Fucoxanthin
c) Phycoerythrin
d) Haematochrome

56) A photosynthetic pigment capable of absorbing green light is
a) Phycocyanin
b) Carotenoid
c) Phycoerythrin
d) Chlorophyll

57) What is unique about Bryophytes?
a) They do not have roots
b) Bryophytes produce spores
c) They lack vascular tissues
d) The sporophyte remains attached to the gametophyte

58) Branched rhizoids and leafy gametophytes are characteristic of
a) All bryophytes
b) Some bryophytes
c) Some pteridophytes
d) All pteriodophytes

59) Bryophytes can be distinguished from algae in having
a) A thallus
b) Archegonia having a sterile outer jacket
c) No conducting tissue
d) Chloroplasts in their cells

60) Bryophytes are distinguishable from fungi in having
a) A sterile jacket layer around sex organs
b) Land habit
c) Flagellate gametes
d) A gametophytic plant body

61) Spores are liberated only after decay and decomposition of the thallus in
a) Marchantia
b) Anthoceros
c) Riccia
d) Funaria

62) Which one is nonvascular?
a) Bryophytes
b) Pteridophytes
c) Gymnosperms
d) Angiosperms

63) Fossils of early vascular plants have been discovered in the rocks of the — era:
a) Cambrian
b) Silurian
c) Devonian
d) Jurassic

64) Selaginella possesses an outgrowth proximally on the adaxial surface. It
is called the

a) Ligule
b) Indusium
c) Stipule
d) Petiole

65) A pteridophyte having a pyrenoid in its chloroplasts is
a) Pteridium
b) Selaginella
c) Equisetum
d) Marsilea

66) Amphiphloic siphonostele/solenostele occurs in the stem of
a) Lycopodium
b) Equisetetum
c) Pteris
d) Marsilea

67) Maiden hair fern is
a) Pteris
b) Dryopteris
c) Adiantum
d) Marsilea

68) A feature common to bryophytes and pteridophytes is:
a) The absence of sporophyte
b) The gametophyte is dependent on the sporopyte
c) The sporophyte is dependent on the gametophyte
d) Multicellular sex organs with sterile jacket

69) Rudimentary seed habit occurs in
a) Lycopodium
b) Selaginella
c) Psilotum
d) Equisetum

70) The sperm of a fern enters an archegonium due to
a) Chemotaxy
b) Phototaxy
c) Thermotaxy
d) Cyclosis

71) The dominant flora, 200 million years ago, was that of
a) Angiosperms
b) Gymnosperms
c) Ferns
d) Lycopods

72) The excurrent/pyramidal habit of Pinus is a device for
a) Adaptation for wind pollination
b) Efficient water transport
c) Overcoming competition amongst adjacent trees
d) Measuring stem growth

73) Pollen grain wings of Pinus are outgrowths of
a) Intine
b) Exine
c) Exo-intine
d) Sporangial wall

74) In Pinus, pollen grains develop inside the
a) Anther
b) Tapetum
c) Pollen chamber
d) Microsporangium

75) Seeds of Pinus are
a) Hypogeal and monocotyledonous
b) Abaxial and rounded
c) Adaxial and endospermic
d) Monocotyledonous and endospermic

76) Sago of Cycas is given to patients with stomach disorders because it is
a) Cheap
b) Easily digestible with less starch
c) Tastier
d) Of high nutritive value

77) Tracheophyta consists of
a) Bryophytes only
b) Pteridophytes only
c) Gymnosperms and angiosperms
d) Pteridophytes, gymnosperms and angiosperms

78) Which is intermediate between conifers and cycads?
a) Tsuga
b) Ephedra
c) Ginkgo
d) Cypressus

79) Gymnosperms have a mode of pollination called
a) Zoophily
b) Anemophily
c) Entomophily
d) Hydrophily

80) Ulothrix is a
a) Filamentous alga with flagellated reproductive stages
b) Filamentous alga with nonflagellated reproductive stages
c) Membranous alga producing zoospores
d) Nonmotile colonial alga lacking reproductive stages.

81) Bryophytes depend upon water because water is required for
a) Vegetative propagation
b) Filling of the archegonium for fertilization
c) Swimming of the sperm upto the egg inside archegonium
d) Fertilization of homosporous plants.

82) Walking Fern is so named because
a) It knows walking
b) It is dispersed through walking
c) Its spores are able to walk
d) It spreads and propagates vegetatively by its leaf tips

83) Which is incorrect about Cycas?
a) Its xylem has vessels
b) It has circinate vernation
c) It does not have a well organised female flower
d) Its roots possess some blue-green algae

84) Algae differ from bryophytes in having
a) Chlorophyll a and b
b) Naked sex organs
c) Jacketed sex organs
d) Aerobic respiration

85) Physiologically anisogamous sexual reproduction occurs in
a) Spirogyra
b) Mucor
c) Selaginella
d) Pinus

86) The fern prothallus develops from the
a) Oospore
b) Antherozoid
c) Elater
d) Spore

87) The gametophytic generation is dominant in
a) Pteridophytes
b) Gymnosperms
c) Bryophytes
d) Angiosperms

88) Heteromorphic alternation of generations occurs in
a) Dictyota
b) Selaginella
c) Rhizopus
d) Spirogyra

89) Dichotomous branching occurs in
a) Liverworts
b) Funaria
c) Dryopteris
d) Pinus

90) To which group would a plant belong that produces spores, has vascular tissues
and bears seeds without fruits?

a) Bryophytes
b) Pteridophytes
c) Gymnosperms
d) Angiosperms

91) Sexual reproduction of Spirogyra involves fusion of
a) One motile gamete and one nonmotile gamete
b) Two nonmotile gametes
c) Two similar motile gametes
d) Two dissimilar motile gametes

92) The stem of Selaginella has a
a) Siphonostele
b) Protostele
c) Ectophloic siphonostele
d) Amphiphloic siphonostele

93) Ephedrine is got from the — of Ephedra
a) Flowers
b) Leaves
c) Stems
d) Roots

94) Oogamous sexual reproduction involves fusion of
a) Motile and nonmotile gametes
b) Similar gametes
c) Dissimilar motile gametes
d) Dissimilar nonmotile gametes

95) In oogamous reproduction
a) Both male and female gametes are motile
b) Both gametes are theproduct of division of protoplast
c) Both male and female gametes are nonmotile
d) For male gametes the protoplast divides but for female gametes it does not

96) The male cone of Pinus possesses
a) Megasporophylls
b) Microsporophylls
c) Anthers
d) Ligules

97) The life cycle of Spirogyra/Chlamydomonas is
a) Haplobiontic/Haplontic
b) Diplobiontic
c) Haplodiplobiontic
d) Diplontic

98) The Father of Indian Bryology is
a) Raj Kumar
b) S.R. Kashyap
c) Maheshwari
d) Khurana

99) In Funaria, rhizoids arise from the
a) Basal region
b) Apical region
c) Dorsal region
d) Ventral region

100) Which one has oil and occasionally starch as reserve food?
a) Chlorophyceae
b) Phaeophyceae
c) Rhodophyceae
d) Xanthophyceae

Answers

Leave a Comment

This site uses Akismet to reduce spam. Learn how your comment data is processed.

Do you want regular updates on Science & Technology and Up to date General knowledge?

Join HourlyBook Newsletter, to update skills in Science and Technology and keep updated with current trends. You will receive regular updates on:

  • Latest Science & Technology Articles
  • Updates on Medical & Engineering Entrance Exams Worldwide
  • Tips and Tricks to Day to Day useful topics
Close this popup