Diversity of Plant Life MCQs Part 9

1) Indusium occurs in
a) Cycas
b) Chlorella
c) Pteris
d) Riccia

2) The term chromatophore was introduced by
a) Pfeffer
b) Schmitz
c) Singer and Nicolson
d) Compraheti

3) Primitive type of stomata occur in mosses over the
a) Apophysis
b) Leaves
c) Axis
d) All the above

4) Scalariform conjugation occurs in
a) Chlamydomonas
b) Mucor
c) Spirogyra
d) Yeast

5) Vegetative reproduction in Cycas occurs by
a) Scale leaves
b) Sporophylls
c) Bulbils
d) Fragmentation

6) The prothallus of fern has
a) Antheridia and archegonia on the lower surface
b) Antheridia and archegonia on the upper surface
c) Antheridia on the upper surface and archegonia on the lower surface
d) Antheridia on the lower surface and archegonia on the upper surface

7) If three filaments are involved in lateral conjugation in Spirogyra, zygospores
will be found in

a) All the three filaments
b) Only the middle filament
c) Only the lateral filaments
d) Either b or c.

8) In bryophytes, the posterior part of the archegonium grows to protect the embryo.
It is the

a) Paraphysis
b) Calyptra
c) Apophysis
d) Hypophysis

9) The sporophyte of Riccia contains
a) Spores, elaters and nutritive cells
b) Spores and nutritive cells
c) Elaters and spores
d) Spores only

10) A conducting tissue in leaves of Pinus for both water and food is
a) Xylem
b) Phloem
c) Conducting tissue
d) Transfusion tissue

11) The thallus of Riccia is
a) Haploid
b) Diploid
c) Triploid
d) Tetraploid

12) Bryophytes have
a) Archegonia
b) A dominant gametophytic and parasitic sporophytic phases
c) A thalloid plant body
d) All the above

13) The basal cell of Ulothrix is the
a) Antheridium
b) Meristematic
c) Holdfast
d) Zoogonidium

14) Multiciliated antherozoids occur in
a) Riccia and Funaria
b) Pteris and Cycas
c) Riccia and Pteris
d) Marchantia and Riccia

15) The male cone of Pinus replaces
a) Needles
b) Scales
c) Dwarf shoots
d) Long shoots

16) Pinus is
a) Deciduous
b) Dioecious
c) Monoecious
d) None of these

17) In Funaria, the spore germinates to produce the
a) Prothallus
b) Protonema
c) Proembryo
d) Embryo

18) Grouping of algae is based on
a) Food reserve
b) Colony formation
c) Shape
d) Pigments

19) The antherozoids of Marchantia are
a) Short, curved and biflagellate
b) Short, straight and multiflagellate
c) Long, straight and biflagellate
d) Long, curved and biflagellate

20) In Riccia, the archegonium is
a) Rounded
b) Cup-shaped
c) Star-shaped
d) Flask-shaped

21) The dwarf shoot of Pinus is
a) Shed every year
b) Shed after 2-4 years
c) Shed after five years
d) Never shed

22) Cycas occurs commonly in
a) South America
b) North America
c) South East Asia
d) Europe

23) In Pinus, the male gametes are
a) Nonciliate
b) Multiciliate
c) Biciliate
d) Uniciliate

24) Phytoplankton are made of
a) Decomposer micro organisms
b) Plants feeding on animals and their remains
c) Aquatic algae and photosynthetic bacteria
d) Non-vascular hydrophytes

25) In Funaria, the annulus separates the
a) Apophysis and theca
b) Theca and Operculum
c) Columella and apophysis
d) Operculum and apophysis

26) On germination, each zygospore of Spirogyra produces
a) Four plants
b) Three plants
c) Two plants
d) One plant

27) In Spirogyra, pyrenoids occur in the
a) Nucleus
b) Cell wall
c) Cytoplasm
d) Chloroplast

28) Chloroplasts are found in the spores of
a) Yeast
b) Funaria
c) Dryopteris
d) Rhizopus

29) A bryophyte of considerable economic importance is
a) Marchantia
b) Riccia
c) Funaria
d) Sphagnum

30) Vessels occur in
a) Angiosperms
b) Gymnosperms
c) Pteridophytes
d) Viruses

31) The fern gametophyte bears
a) Roots
b) Antheridia
c) Archegonia
d) Both B and C

32) Angiosperms show
a) Monospory
b) Bispory
c) Trispory
d) Tetraspory

33) At the time of pollination the pollen grains of Pinus are
a) One celled
b) Two celled
c) Three celled
d) Four celled

34) Sulphur shower is due to
a) Acid rain
c) Exposed sulphur rocks
d) Pollen of Pinus

35) In Selaginella, the
a) Gametophyte is dominant
b) Sporophyte is dominant
c) Sporophyte is a total parasite
d) Gametophyte is a total parasite

36) Sporophyte is completely dependent in
a) Selaginella
b) Dryopteris
c) Riccia
d) Pinus

37) The term prothallus is used for the
a) Stage before thallus
b) Plant body without differentiation of stem, leaves and roots
c) Reduced gametophyte
d) Reduced sporophyte

38) Thin-walled nonflagellate spores are
a) Zoospores
b) Aplanospores
c) Hypnospores
d) Zygospores

39) Which one of the following has not changed for the last several thousand

a) Dryopteris
b) Gnetum
c) Ginkgo
d) Pinus

40) Iodine can be obtained from
a) Laminaria
b) Porphyra
c) Chlorella
d) Polysiphonia

41) Selaginella multiplies vegetatively through
a) Tubers
b) Resting buds
c) Fragmentation
d) All the above

42) In Funaria, the calyptra is formed from the
a) Capsule
b) Archegonium
c) Columella
d) Antheridium

43) Which one is the earliest land plant?
a) Rhynia
b) Homea
c) Cooksonia
d) Cordaites

44) The largest ovules, trees and gametes are found in
a) Monocots
b) Dicots
c) Both A and B
d) Gymnosperms

45) Meiosis occurs in ferns during
a) Spore formation
b) Archegonia formation
c) Antheridia formation
d) Both B and C

46) Chlorophyll a, Chlorophyll d and phycoerythrin occur in
a) Chlorophyceae
b) Bacillariophyceae
c) Cyanophyceae
d) Rhodophyceae

47) In Selaginella, the male gametes are
a) Uniflagellate
b) Biflagellate
c) Nonflagellate
d) Multiflagellate

48) The moss sporophyte does not possess
a) Elaters
b) Seta
c) Foot
d) Columella

49) Nonmotile gametes occur in
a) Ulothrix
b) Spirogyra
c) Funaria
d) Selaginella

50) An annulus occurs in
a) Annual plants
b) Mosses
c) Both mosses and ferns
d) Gymnosperms

51) Apophysis occurs in
a) Marchantia
b) Pteridium
c) Apocyanaceae
d) Mosses

52) Algae are important to human beings as they
a) Can be turned into important diet in future
b) Purify the atmosphere
c) Can be grown in water tanks
d) None of the above

53) A plant having vascular supply, producing spores and lacking seeds is a
a) Bryophyte
b) Pteridophyte
c) Angiosperm
d) Gymnosperm

54) The female sex organs of bryophytes are called
a) Oogonia
b) Ascogonia
c) Archegonia
d) Antheridia

55) The term bryophyta was coined by
a) Iyengar
b) Linnaeus
c) Braun
d) Bentham

56) Kelps are
a) Fresh water algae
b) Marine algae
c) Terrestrial plants
d) Amphibious plants

57) An algal zone is characteristic of the
a) Coralloid root of Cycas
b) Normal root of Cycas
c) Normal root of Pinus
d) Mycorrhizal root of Pinus

58) Fibrous roots develop in maize from the
a) Lower nodes
b) Upper nodes
c) Upper internodes
d) None of these

59) Roots which develop from any portion of the plant other than the radicle are known as
a) Tap root
b) Adventitious
c) Fibrous
d) Axillary

60) Root hairs occur in the
a) Root cap
b) Region of cell elongation
c) Apical meristem
d) Apical meristem

61) The thick roots that hang down from the Banyan tree are called
a) Buttress roots
b) Pneumatophores
c) Prop roots
d) Stilt roots

62) The prop roots of Ficus are
a) Positively geotropic
b) Negatively geotropic
c) Positively heliotropic
d) Negatively hydrotropic

63) Stilt roots are produced by the
a) Lower internodes
b) Upper internodes
c) Lower nodes
d) Upper nodes

64) Haustoria or sucking roots are found in
a) Tinospora
b) Cuscuta
c) Betel
d) Orchids

65) Pneumatophores (breathing roots) are usually present in
a) Xerophytes
b) Epiphytes
c) Mangrove plants (Avicennia)
d) Ficus

66) Pneumatophores are usually present in
a) Eichhornia
b) Murraya
c) Avicennia
d) Casuarina

67) Respiratory roots are found in
a) Betel
b) Chestnut
c) Jussiaea
d) Zea

68) Pneumatophores are helpful in
a) Transpiration
b) Carbohydrate metabolism
c) Protein synthesis
d) Respiration

69) In sweet potato, food is stored in the
a) Tuber
b) Stem
c) Tap root
d) Striga

70) Which is an example of a tuberous root?
a) Colocasia antiquorum
b) Ipomoea batatas
c) Ficus benghalensis
d) Solanum tuberosum

71) The edible part of a sweet potato is its
a) Underground stem
b) Leaves
c) Stem
d) Adventitious tuberous roots

72) Climbing roots are found in
a) Asparagus
b) Betel
c) Screw pine
d) Orchids

73) An epiphytic root is found in
a) Indian rubber
b) Orchids
c) Cuscuta
d) Tinospora

74) Velamen is a specialized tissue found in
a) Parasites
b) Halophytes
c) the aerial roots of some orchids
d) All epiphytes

75) Velamen tissue is formed by
a) Stem
b) Clinging roots
c) Hanging roots
d) Absorbing roots

76) The tuberous roots of sweet potato are the
a) Modified tap roots
b) Underground stems
c) Modified adventitious roots
d) Tap root

77) Tthe adventitious roots of Pistia are helpful in
a) Vegetative reproduction
b) Balancing the plant
c) Storing the food material
d) None of the above

78) Roots are feebly developed in
a) Halophytes
b) Xerophytes
c) Mesophytes
d) Hydrophytes

79) Photosynthetic velamen roots are not found in
a) Taeniophyllum
b) Asparagus
c) Vanilla
d) Vanda

80) Stilt roots are found in
a) Rice
b) Sugarcane
c) Groundnut
d) Gram

81) The aerial stem in banana is a
a) True herbaceous stem
b) False stem
c) Corm
d) Rhizome

82) Branches of the stem are
a) Endogenous in origin
b) Superficial
c) Exogenous in origin
d) Partly endogenous and partly exogeous

83) The underground modification of stem is primarily for
a) Respiration
b) Perennation
c) Vegetative reproduction
d) Growth

84) In the onion, the underground swollen edible portion is the
a) Root
b) Bulb
c) Underground stem
d) Rhizome

85) Bulbs of garlic and onion have
a) Greatly developed root system
b) No leaves
c) No stem
d) Greatly reduced stems

86) Potatoes are borne on
a) Adventitious roots
b) Lateral roots
c) Primary roots
d) Primary roots

87) The eyes of a potato are
a) Fungal growths
b) Root nodules
c) Nodes of the stem
d) Epidermal outgrowths

88) A stolon is a
a) Stem
b) Stem
c) Root
d) Underground stem

89) A lateral branch growing obliquely from an underground stem is called a
a) Sucker
b) Offset
c) Bulbil
d) Stolon

90) Which is true about a stolon?
a) It is bitter in taste
b) it is a shoot
c) It is non-green in colour
d) It stores food

91) When the stem is modified into a green flattened structure, it is called a
a) Bulbil
b) Coralloid root
c) Phyllode
d) Phylloclade

92) A horizontal underground stem is present in
a) Colocasia
b) Curcuma
c) Onion
d) Potato

93) The stem is reduced to a disc in a
a) Corm
b) Bulb
c) Rhizome
d) Tuber

94) The mint plant produces a
a) Rhizome
b) Offset
c) Stolon
d) Sucker

95) Muehlenbeckia (Cocoloba) is a good example of a
a) Phylloclade
b) Phyllode
c) Rhizome
d) Corm

96) A leaf without a petiole is called
a) Petiolate
b) Sessile
c) Subsessile
d) Subpetiolate

97) The occurrence of more than one type of leaf on the same plant is called
a) Venation
b) Heterophylly
c) Vernation
d) Aestivation

98) Vernation is a term used to denote
a) The arrangement of leaves on the stem
b) The arrangement of leaves in the bud with reference to other leaves
c) The arrangement of the veins
d) The folding of leaves in vegetative bud

99) Reticulate venation is found in the leaves of
a) Maize
b) Canna
c) Artocarpus
d) Banana

100) Which of the following plant has parallel venation in its leaves?
a) Castor
b) Grass
c) Moss
d) Fern


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