Diversity of Plant Life MCQs Part 11

1) Beaded roots are found in
a) Portulaca and Momordica
b) Ficus and Cycas
c) Pinus and Asparagus
d) Pisum and Linum

2) Onions belong to
a) Crucigerae
b) Liliaceae
c) Umbelliferae
d) Compositae

3) The botanical name of garlic is
a) Allium cepa
b) Allium sativum
c) Gloriosa superba
d) Ruscus spp

4) A bulbil is a modification of the
a) Underground stem
b) Base of a leaf
c) Bud
d) Radicle

5) Which of the following is a modified green stem?
a) Rhizome
b) Bulbil
c) Corm
d) Phylloclade

6) If one or two internodes becomes changed into leafy structures, the modification
is termed a

a) Phyllode
b) Phylloclade
c) Cladode
d) Pistillode

7) The photosynthetic organs of Opuntia are
a) Phyllodes
b) Phylloclades
c) Leaves
d) Leaflets

8) Smilax, Dracaena and yucca belongs to
a) Liliaceae
b) Malvaceae
c) Mimosoideae
d) Solanaceae

9) The photosynthetic organs of Asparagus are
a) Leaves
b) Leaf stipules
c) Phyllodes
d) Cladodes

10) In plants like Chrysanthemum, Mentha and jasmines the stem is a subaerial
modification called a

a) Runner
b) Stolon
c) Offset
d) Sucker

11) In which of the following is the stem most reduced?
a) Rhizome
b) Corm
c) Phylloclade
d) Bulb

12) Which plant stores food in its leaves?
a) Potato
b) Sweet potato
c) Sugar beet
d) Garlic

13) The main photosynthetic organs of Lathyrus aphaca plant are
a) Leaves
b) Leaflets
c) Stipules
d) Phyllodes

14) Foliaceous or photosynthetic stipules occur in
a) Shoeflowers
b) Lathyrus/Pisum
c) Candytufts
d) Hollyhocks

15) Phyllotaxy in Calotropis is
a) Alternate
b) Opposite decussate
c) Opposite superimposed
d) Whorled

16) One of the sepals is modified into an attractive leaf in
a) Bougainvillea
b) Mussaenda
c) Sunflower
d) Pea plant

17) If a growing plant is decapitated
a) the leaves become yellow and have a tendency to fall off
b) Growth stops
c) the axillary buds are inactivated
d) the axillary buds are activated

18) A tissue is a group of cells which are
a) Similar in origin, but dissimilar in form and function
b) Dissimilar in origin, form and function
c) Dissimilar in origin but similar in form and function
d) Similar in origin, form and function

19) The term meristem was given by
a) N. Grew
b) Strasburger
c) Hunstein
d) C. Nageli

20) The cells of a meristematic tissue have
a) Thin walls and no intercellular spaces
b) Densely filled cytoplasm
c) A large nucleus and active cell division
d) All the above

21) Where would you look for active cell division in a plant? OR The meristematic activity is at its maximum in the
a) Bud
b) Leaf
c) shoot apex
d) Root hair

22) Bamboo, grass and mint stems elongate by the activity of
a) Primary meristem
b) Secondary meristem
c) Intercalary meristems
d) Apical meristems

23) The lateral meristem is responsible for
a) Growth in length
b) Growth in parenchyma
c) Growth in thickness
d) Growth in cortex

24) Which of the following plants grows by a single “apical cell”?
a) Monocots
b) Dicots
c) Gymnosperms
d) Bryophytes

25) The “histogen theory” was proposed by
a) Nageli
b) Hanstein
c) Schmidt
d) Haberlandt

26) Dermatogen is a tissue formed by apical meristem and it develops into the
a) Cortex
b) Vascular bundle
c) Epidermis
d) Ground tissue (pith)

27) The periblem gives rise to the
a) Pericycle
b) Cortex
c) Medulla
d) Epidermis

28) Which tissues are derived from the plerome?
a) Epidermis
b) Endodermis
c) Cortex
d) Vascular tissues

29) The stelar region (vascular tissue, pericycle & pith) is formed from the
a) Periblem
b) Plerome
c) Dermatogen
d) Tunica

30) The secondary meristem originates from the
a) Promeristem
b) Primary meristem
c) Permanent tissue
d) Secretory tissue

31) Cambium causes growth in the
a) Circumference
b) Width (or girth) of diameter
c) Leaves
d) Length

32) Which of the following is a secondary meristem?
a) Protoderm
b) Procambium
c) Cork cambium
d) All the above

33) Procambium is situated just behind the apical meristem. Procambium gives
rise to

a) the primary vascular bundles and vascular cambium
b) only vascular cambium
c) only cork cambium
d) only the primary vascular bundles

34) A cup-like region of slowly dividing or inactive cells in the middle
of highly meristematic cells (between meristem and root cap) is the

a) Somatic zone
b) Vegetative zone
c) Quiescent centre
d) Corpus centre

35) A quiescent centre is present in the
a) Root apex
b) Shoot apex
c) Vegetative apex
d) Reproductive apex

36) In which of the following is the growth subapical?
a) Root
b) Shoot
c) Petiole
d) Pedicel

37) The root cap is not found in
a) Hollyhock
b) Pistia
c) Sunflower
d) China rose

38) Tunica and corpus organization occurs in the
a) Root apex
b) Shoot apex
c) Cambium
d) Intercalary meristems

39) Tunica corpus theory was proposed by
a) Nageli
b) Hofmeister
c) Schmidt
d) Strasburger

40) What type of tissue is immediately produced from a meristem?
a) Parenchyma
b) Xylem
c) Phloem fibre
d) Tracheid

41) The tissues not having specifically thickened walls are
a) Parenchyma
b) Collenchyma
c) Fibres
d) Sclereids

42) Which of the following tissues form the main bulk of storage organs?
a) Parenchyma
b) Collenchyma
c) Sclerenchyma
d) Aerenchyma

43) Cells of parenchymatous tissue are characterized by
a) the uniform thickness of cell walls
b) Thickening at the corners
c) Lignified walls
d) Intercellular spaces

44) Aerenchyma is found in
a) Lithophytes
b) Hydrophytes
c) Sciophytes
d) Xerophytes

45) Aerenchyma is helpful to plants by
a) Providing buoyancy in hydrophytes
b) Promoting photosynthesis
c) Giving mechanical strength to plants
d) Giving flexibility to plants

46) Parenchyma containing chloroplasts is called
a) Chlorenchyma
b) Collenchyma
c) Aerenchyma
d) Amylenchyma

47) A simple mechanical tissue devoid of lignin is
a) Parenchyma
b) Collenchyma
c) Sclerenchyma
d) Chlorenchyma

48) Mechanical tissue consisting of living cells is
a) Sclerenchyma
b) Collenchyma
c) Chlorenchyma
d) Parenchyma

49) Sclerenchymatous cells have a large percentage of — in their cell walls
a) Cellulose
b) Pectin
c) Lignin
d) Silica

50) Collenchyma differs from sclerenchyma in
a) Retaining protoplasm at maturity
b) Having thick walls
c) Having a wide lumen
d) Being meristematic

51) Which of the following tissues is dead, gives mechanical strength and
confers hardness?

a) Parenchyma
b) Collenchyma
c) Sclerenchyma
d) All the above

52) A pear fruit contains a lot of
a) Aerenchyma
b) Collenchyma
c) Fibres
d) Stone cells

53) A stone cell is
a) A rounded sclerenchyma cell
b) A cell impregnated with silica
c) Cells of a plant growing on stone
d) Cells which form stones and rocks

54) Malpighian cells form
a) Water secretory tissue
b) Solute filtration tissue in plants
c) Macrosclereids
d) Epidermal hairs

55) The presence of lignin in the cell wall is a characteristic feature of
a) Woody tissue
b) Parenchyma
c) Phloem
d) Cork

56) A lignified cell wall is a characteristic feature of
a) Xylem cells
b) Phloem cells
c) Epidermal cell
d) Cambial cell

57) Safranin stains which element of a tissue?
a) Starch
b) Lignin
c) Protein
d) Cutin

58) The long pointed type of sclerenchymatous cells are
a) Trachea
b) Fibres
c) Sclereids
d) Wood parenchyma

59) Fibre, the longest plant cell, belongs to the tissue
a) Parenchyma
b) Collenchyma
c) Sclerenchyma
d) Aerenchyma

60) All the xylem elements, when mature, are dead except
a) Tracheids
b) Vessels
c) Xylem parenchyma
d) Xylem fibres

61) The function of a vessel is
a) conduction of food
b) conduction of water and minerals
c) to provide strength
d) none of these

62) Presence of vessels in the xylem is
a) A primitive character
b) An advanced character
c) A vestigial character
d) None of the above

63) Angiosperms have
a) vessels absent
b) tracheids only
c) vessels present
d) sieve tubes absent

64) Tracheids, vessels, wood fibres and wood parenchyma are constituents

a) Phloem
b) Xylem
c) Tyloses
d) None of the above

65) Bordered pits are seen in
a) Protoxylem
b) Metaxylem
c) Phloem
d) Pith

66) Which of the following is not a component of xylem?
a) Sieve tubes
b) Vessels
c) Tracheids
d) Wood parenchyma

67) A xylem fibre is a
a) Bast fibre
b) Wood fibre
c) Heart wood
d) Libriform fibre

68) The tissue responsible for translocation of food material is
a) Parenchyma
b) Sieve tubes
c) Vessels
d) Fibres

69) Phloem in the plants carries out the function of
a) Providing support
b) Conduction of food
c) Photosynthesis
d) Conduction of water

70) Sieve tubes are a part of
a) Protoxylem
b) Metaxylem
c) Vascular cambium
d) Bast

71) Bast fibres in woody stems belong to
a) Cork
b) Phloem
c) Cortex
d) Xylem

72) In plants, cells of which of the following would most likely show totipotency:
a) Xylem vessels
b) Meristem
c) Cork
d) Sieve tube

73) The sieve tubes have
a) Simple oblique walls
b) Perforated longitudinal plates
c) Perforated oblique septa
d) Apical and oblique plates

74) Companion cells are seen associated with
a) Sieve tubes
b) Collenchyma
c) Medullary parenchyma
d) Secondary cambium

75) The cell functionally associated with sieve tubes is
a) Phloem fibres
b) Phloem parenchyma
c) Companion cell
d) Collenchyma

76) The wall of which of the following tissues are lignified?
a) Sieve tubes
b) Albuminous cells
c) Phloem parenchyma
d) None of these

77) The tissue laid down by the vascular cambium to the inside of the primary phloem is
a) Secondary xylem
b) Secondary phloem
c) Companion cells
d) Primary xylem

78) Tyloses are
a) Compound sieve plates
b) Laticiferous channels
c) Tracheal plugs which block the lumen of vessels and tracheids
d) Specialised secretory cells

79) Tyloses are found in
a) Secondary xylem
b) Secondary phloem
c) Callus tissue
d) Cork cells

80) Balloon like outgrowths of parenchyma into the lumen of vessels are known

a) Phellogen
b) Tyloses
c) Tunica
d) Histogen

81) A callus is
a) A part of phloem
b) An irregular growth developed as a result of injury
c) A part of the companion cell
d) A part of parenchyma

82) In autumn season, the callus pads appear on
a) Vessels
b) Sieve cells
c) Sieve plates
d) Tracheids

83) A mature sieve tube differs from a vessel in
a) Lacking a functional nucleus
b) the absence of lignified walls
c) Being nearly dead
d) Lacking cytoplasm

84) Hydathodes occur on the
a) Stem
b) Leaf
c) Root
d) Fruit

85) The excretion of water occurs through the
a) Lenticel
b) Stomata
c) Hydathode
d) Leaf scars

86) Epithem tissue is associated with
a) Transpiration
b) Photosynthesis
c) Guttation
d) Translocation

87) A cavity formed by the separation of cells is
a) Lysigenous
b) Schizogenous
c) Schizo-lysigenous
d) Macerogenous

88) A cavity formed by the disintegration of cells is
a) Schizogenous
b) Lysigenous
c) Schizo-lysigenous
d) Water cavity

89) In which of the following families is laticiferous tissue found?
a) Gramineae
b) Cruciferae
c) Euphorbiaceae
d) Leguminosae

90) Laticiferous vessels are found in the
a) Xylem tissue
b) Phloem tissue
c) Cortex
d) None of the above

91) Latex vessels are prominent in
a) Calotropis
b) Vinca
c) Papaver
d) All the above

92) Natural rubber is obtained from the latex of
a) Calotropis
b) Hevea
c) Euphorbia
d) Papaver

93) The significance of latex to a plant is in
a) Healing
b) Defense
c) Both A and B
d) Nutrition

94) Resin ducts are found in
a) Pines
b) Bamboos
c) Teak
d) Sal

95) Dermal tissue is derived from
a) Periblem
b) Dermatogen
c) Procambium
d) Plerome

96) Epidermal outgrowths are known as
a) Trichomes
b) Leaves
c) Leaves
d) Buds

97) Xylem is flanked by phloem on exterior sides only. This arrangement is
a) Concentric leptocentric
b) Concentric hadrocentric
c) Conjoint bicollateral
d) Conjoint collateral

98) If xylem is surrounded by phloem on all sides, the vascular bundle is

a) Amphivasal
b) Leptocentric
c) Radial
d) Amphicribral

99) Amphivasal vascular bundles are found in
a) Cycas and Dryopteris
b) Dracaena and Yucca
c) Helianthus and Cucurbita
d) Maize and wheat

100) The order of development in an exarch xylem is
a) Centripetal
b) Centrifugal
c) Both
d) None



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