Q1. Which one of the following statements is correct?
(1) Placentation in primrose is basal
(2) In tomato, fruit is a capsule
(3) Flower of tulip is a modified shoot
(4) Seeds of orchids have oil-rich endosperm
Answer: (3) Flower of tulip is a modified shoot
Q2. The technical term used for the androecium in a flower of China rose (Hibiscus rosa sinensis) is:
(1) Polyandrous
(2) Monadelphous
(3) Polyadelphous
(4) Diadelphous
Answer: (2) Monadelphous
Q3. Ovary is half-inferior in the flowers of:
(1) brinjal
(2) guava
(3) cucumber
(4) plum
Answer: (4) plum
Q4. Sweet potato is homologous to
(1) Ginger
(2) Potato
(3) Turnip
(4) Colocasia
Answer: (3) Turnip
Q5. Whorled, simple leaves with reticulate venation are present in
(1) China rose
(2) Calotropis
(3) Alstonia
(4) Neem
Answer: (3) Alstonia
Q6. The ovary is half inferior in flowers of
(1) cotton
(2) peach
(3) guava
(4) cucumber
Answer: (2) peach
Q7. Flowers are zygomorphic in:
(1) ioruato
(2) mustard
(3) Datura
(4) gulmohur
Answer: (4) gulmohur
Q8. How many plants in the list given below have composite fruits that develop from an inflorescence Walnut, poppy, radish, fig, pineapple, apple, tomato, mulberry
(1) Two
(2) Four
(3) Three
(4) Five
Answer: (3) Three
Q9. The gynoecium consists of many free pistils in flowers of
(1) Papaver
(2) Michelia
(3) Aloe
(4) Tomato
Answer: (3) Aloe
Q10. Phyllode is present in:
(1) Australian Acacia
(2) Asparagus
(3) Opuntia
(4) Euphorbia
Answer: (1) Australian Acacia
Q11. Cymose inflorescence is present in:
(1) Trifolium
(2) Solanum
(3) Brassica
(4) Sesbania
Answer: (2) Solanum
Q12. Placentation in tomato and lemon is
(1) Marginal
(2) Parietal
(3) Axile
(4) Free central
Answer: (3) Axile
Q13. In china rose the flowers are:
(1) Zygomorphic, epigynous with twisted aestivation
(2) Actinomorphic, epigynous with valvate aestivation
(3) Actinomorphic, hypogynous with twisted aestivation
(4) Zygomorphic, hypogynous with imbricate aestivation
Answer: (3) Actinomorphic, hypogynous with twisted aestivation
Q14. How many plants in the list given below have marginal placentation? Mustard, Gram, Tulip, Asparagus, Arhar, Sun hemp, Chilli, Colchicine, Onion, Moong, Pea, Tobacco, Lupin
(1) Six
(2) Four
(3) Three
(4) Five
Answer: (1) Six
Q15. Which one of the following organisms is correctly matched with its three characteristics?
(1) Onion: Bulb, Imbricate aestivation, Axile placentation
(2) Pea: C3 pathway, Endospermic seed, Vexillary aestivation
(3) Maize: C3 pathway, Closed vascular bundles, Scutellum
(4) Tomato: Twisted aestivation, Axile placentation, Berry
Answer: (1) Onion: Bulb, Imbricate aestivation, Axile placentation
Q16. Vexillary aestivation is characteristic of the family
(1) Solanaceae
(2) Fabaceae
(3) Brassicaceae
(4) Asteraceae
Answer: (2) Fabaceae
Q17. The coconut water and the edible part of coconut are equivalent to:
(1) Mesocarp
(2) Endosperm
(3) Embryo
(4) Endocarp
Answer: (2) Endosperm
Q18. Inflorescence is racemose in
(1) Tulip
(2) Soyabean
(3) Aloe
(4) Brinjal
Answer: (2) Soyabean
Q19. In a cymose inflorescence the main axis
(1) Bears a solitary flower
(2) Terminates in a flower
(3) Has unlimited growth but lateral branches end in flowers
(4) Has unlimited growth
Answer: (2) Terminates in a flower
Q20. How many plants among China rose, Ocimum, sunflower, mustard, Alstonia, guava, Calotropis and Nerium (Oleander) have opposite phyllotaxy?
(1) Four
(2) Two
(3) Five
(4) Three
Answer: (4) Three
Q21. Among flowers of Calotropis, tulip, Sesbania, Asparagus, Colchicine, Sweet pea, Petunia, Indigofera, Mustard, Soyabean, Tobacco and groundnut how many plants have corolla with valvate aestivation?
(1) Seven
(2) Five
(3) Eight
(4) Six
Answer: (1) Seven
Q22. Among bitter gourd, mustard, brinjal, pumpkin, china rose, lupin, cucumber, sunhemp, gram, guava, bean, chilli, plum, petunia, tomato, rose, withania, potato, onion, aloe and tulip how many plants have hypogynous flower ?
(1) Eighteen
(2) Ten
(3) Six
(4) Fifteen
Answer: (4) Fifteen
Q23. Pith and cortex do not differentiate in
(1) monocot root
(2) monocot stem
(3) dicot root
(4) dicot stem
Answer: (2) monocot stem
Q24. Cork is formed from
(1) phloem
(2) cork cambium (phellogen)
(3) xylem
(4) vascular cambium
Answer: (2) cork cambium (phellogen)
Q25. Which one yields fibres?
(1) Teak
(2) Coconut
(3) Sisso
(4) Oak
Answer: (2) Coconut
Q26. Which meristem helps in increasing girth?
(1) Primary meristem
(2) Lateral meristem
(3) Apical meristem
(4) Intercalary meristem
Answer: (2) Lateral meristem
Q27. Tunica corpus theory is connected with
(1) shoot apex
(2) root apex
(3) secondary growth
(4) root cap
Answer: (1) shoot apex
Q28. Cork cambium and vascular cambium are
(1) lateral meristems
(2) parts of secondary xylem and phloem
(3) apical meristems
(4) parts of pericycle
Answer: (1) lateral meristems
Q29. Which is the correct fact about diffuse or ring porous wood?
(1) Ring porous wood carries more water when need is higher
(2) Ring porous wood, carries more water for short period
(3) Diffuse porous wood is less specialised but conducts water rapidly throughout
(4) Diffuse porous wood carries more water
Answer: (1) Ring porous wood carries more water when need is higher
Q30. Sieve tubes are suited for translocation of food because they possess
(1) broader lumen and perforated cross walls
(2) bordered pits
(3) no protoplasm
(4) no ends walls
Answer: (1) broader lumen and perforated cross walls
Q31. Death of protoplasm is a pre-requisite for a vital function like
(1) absorption of water
(2) transport of sap
(3) gaseous exchange
(4) transport of food
Answer: (2) transport of sap
Q32. Organisation of stem apex into corpus and tunica is determined mainly by
(1) rate of cell growth
(2) planes of cell division
(3) rate of shoot tip growth
(4) regions of meristematic activity
Answer: (2) planes of cell division
Q33. For union between stock and scion in grafting, which one is the first to occur?
(1) Differentiation of new vascular tissues
(2) Formation of callus
(3) Regeneration of cortex and epidermis
(4) Production of plasmodesmata
Answer: (2) Formation of callus
Q34. Pericycle of roots produces
(1) vascular bundles
(2) mechanical support
(3) adventitious buds
(4) lateral roots
Answer: (4) lateral roots
Q35. Collenchyma occurs in
(1) climbing stems
(2) herbaceous climbers
(3) water plants
(4) woody climbers
Answer: (1) climbing stems
Q36. Collenchyma occurs in the stem and petioles of
(1) Dicot herbs
(2) Xerophytes
(3) Hydrophytes
(4) Monocots
Answer: (1) Dicot herbs
Q37. Monocot leaves possess
(1) apical meristem
(2) intercalary meristem
(3) mass meristem
(4) lateral meristem
Answer: (2) intercalary meristem
Q38. An organised and differentiated cellular structure having cytoplasm but no nucleus is
(1) Sieve tubes
(2) Vessels
(3) Tracheids
(4) Xylem parenchyma
Answer: (1) Sieve tubes
Q39. Angular collenchyma occurs in
(1) Althaea
(2) Cucurbita
(3) Salvia
(4) Helianthus
Answer: (2) Cucurbita
Q40. Where do the casparian bands occur?
(1) Pericycle
(2) Epidermis
(3) Phloem
(4) Endodermis
Answer: (4) Endodermis
Q41. Vascular cambium produces
(1) primary xylem and secondary phloem
(2) primary xylem and primary phloem
(3) secondary xylem and primary phloem
(4) secondary xylem and secondary phloem
Answer: (4) secondary xylem and secondary phloem
Q42. What is true about a monocot leaf
(1) Mesophyll not differentiated into palisade and spongy tissues
(2) Reticulate venation
(3) Well differentiated mesophyll
(4) Absence of bulliform cells from epidermis
Answer: (1) Mesophyll not differentiated into palisade and spongy tissues
Q43. Abnormal/anomalous secondary growth occurs in
(1) Wheat
(2) Dracaena
(3) Sunflower
(4) Ginger
Answer: (2) Dracaena
Q44. Bordered pits are found in
(1) Companion cells
(2) Sieve cells
(3) Sieve tube wall
(4) Vessel wall
Answer: (4) Vessel wall
Q45. A bicollateral vascular bundle is characterised by
(1) Longitudinal splitting of vascular bundle
(2) Phloem being sandwiched between xylem
(3) Xylem being sandwiched between phloem
(4) Transverse splitting of vascular bundle
Answer: (3) Xylem being sandwiched between phloem
Q46. Commercial cork is obtained from
(1) Quercus/Oak
(2) Berberis/Barberry
(3) Betula/Birch
(4) Salix/Willow
Answer: (1) Quercus/Oak
Q47. Which is correct about transport or conduction of substances?
(1) Inorganic food moves upwardly and downwardly through xylem
(2) Organic food moves up through phloem
(3) Organic food moves upwardly and downwardly through phloem
(4) Organic food moves up through phloem
Answer: (3) Organic food moves upwardly and downwardly through phloem
Q48. As the secondary growth takes place (proceeds) in a tree, thickness of
(1) both increase
(2) heart wood increases
(3) both remain the same
(4) sap-wood increases
Answer: (2) heart wood increases
Q49. Procambium forms
(1) only cork cambium
(2) only primary vascular bundles
(3) primary vascular bundles and vascular cambium
(4) only vascular cambium
Answer: (2) only primary vascular bundles
Q50. Periderm is produced by
(1) Phellogen
(2) Vascular cambium
(3) Intrafascicular cambium
(4) Fascicular cambium
Answer: (1) Phellogen
Q51. A narrow layer of thin walled cells found between phloem/bark and wood of a dicot is
(1) Endodermis
(2) Cork cambium
(3) Pericycle
(4) Vascular cambium
Answer: (4) Vascular cambium
Q52. Which exposed wood will decay faster
(1) Wood with lot of fibres
(2) Sapwood
(3) Heartwood
(4) Softwood
Answer: (2) Sapwood
Q53. Transition of radial vascular bundle in root to conjoint vascular bundle in stem occurs in which zone?
(1) Meristem
(2) Epicotyl
(3) At base of stem
(4) Hypocotyl
Answer: (4) Hypocotyl
Q54. Which of the following meristems is responsible for extra stelar secondary growth in the dicotyledonous stem?
(1) Intercalary meristem
(2) Intrafascicular cambium
(3) Phellogen
(4) Interfascicular cambium
Answer: (3) Phellogen
Q55. A leaf primordium grows into the adult leaf lamina by means of
(1) marginal meristems
(2) apical meristem
(3) at first by apical meristem and later largely by marginal meristems.
(4) lateral meristem
Answer: (3) at first by apical meristem and later largely by marginal meristems. c
Q56. At maturity which of the following is enucleate?
(1) Palisade cell
(2) Sieve cell
(3) Cortical cell
(4) Companion cell
Answer: (2) Sieve cell
Q57. What is not true about sclereids?
(1) These are commonly found in the shells of nuts and in the pulp of guava, pear, etc
(2) These are parenchyma cells with thickened lignified walls
(3) These are also called the stone cells
(4) These are elongated and flexible with tapered ends
Answer: (2) These are parenchyma cells with thickened lignified walls
Q58. Four radial vascular bundles are found in
(1) dicot stem
(2) dicot root
(3) monocot stem
(4) monocot root
Answer: (2) dicot root
Q59. Vessels are found in
(1) all angiosperms, all gymnosperms and some pteridophyta
(2) all angiosperms and some gymnosperms
(3) all pteridophyta
(4) most of angiosperms and few gymnosperms
Answer: (4) most of angiosperms and few gymnosperms
Q60. Main function of lenticel is
(1) gaseous exchange
(2) transpiration
(3) bleeding
(4) guttation
Answer: (2) transpiration
Q61. Loading of phloem is related to
(1) separation of phloem parenchyma
(2) increases of sugar in phloem
(3) strengthening of phloem fibre
(4) elongation of phloem cell
Answer: (2) increases of sugar in phloem
Q62. What happens during vascularization in plants?
(1) Differentiation of procambium, xylem and phloem is simultaneous
(2) Differentiation of procambium is immediately followed by the development of secondary xylem and phloem
(3) Differentiation of procambium followed by the development of primary phloem and then by primary xylem
(4) Differentiation of procambium followed by the development of xylem and phloem
Answer: (4) Differentiation of procambium followed by the development of xylem and phloem
Q63. Chlorenchyma is known to develop in the
(1) mycelium of a green mould such as Aspergillus
(2) pollen tube of Pinus
(3) spore capsule of a moss
(4) cytoplasm of Chlorella
Answer: (3) spore capsule of a moss
Q64. The apical meristem of the root is present
(1) only in tap roots
(2) in all the roots
(3) only in adventitious roots
(4) only in radicals
Answer: (2) in all the roots
Q65. The cells of the quiescent centre are characterised by
(1) having light cytoplasm and small nuclei
(2) dividing regularly to add to tunica
(3) dividing regularly to add to the corpus
(4) having dense cytoplasm and prominent nuclei
Answer: (1) having light cytoplasm and small nuclei
Q66. Which of the following statements is true?
(1) Vessels are unicellular with wide lumen
(2) Vessels are multicellular with narrow lumen
(3) Tracheids are unicellular with wide lumen
(4) Tracheids are multicellular with narrow lumen
Answer: (3) Tracheids are unicellular with wide lumen
Q67. Axillary bud and terminal bud are derived from the activity of
(1) apical meristem
(2) lateral meristem
(3) parenchyma
(4) intercalary meristem
Answer: (1) apical meristem
Q68. A common structural feature of vessel elements and sieve tube elements are
(1) enucleate condition
(2) pores on lateral walls
(3) thick secondary walls
(4) presence of p-protein
Answer: (1) enucleate condition
Q68. In a woody dicotyledonous tree, which of the following parts will mainly consist of primary tissues?
(1) Flowers, fruits and leaves
(2) All parts
(3) Shoot tips and root tips
(4) Stem and root
Answer: (3) Shoot tips and root tips
Q69. Ectophloic siphonostele is found in
(1) Adiantum and Cucurbitaceae
(2) Osmunda and Equisetum
(3) Dicksonia and Maidenhair fern
(4) Marsilea and Botrychium
Answer: (2) Osmunda and Equisetum
Q70. The most abundant element present in the plants is
(1) Manganese
(2) Carbon
(3) Iron
(4) Nitrogen
Answer: (2) Carbon
Q71. In a longitudinal section of a root, starting from the tip upward, the four zones occur in the following order:
(1) Cell division, cell enlargement, cell maturation, root cap
(2) Root cap, cell division, cell enlargement, cell maturation
(3) Cell division, cell maturation, cell enlargement, root cap
(4) Root cap, cell division, cell maturation, cell enlargement
Answer: (2) Root cap, cell division, cell enlargement, cell maturation
Q72. Which one of the following is resistant to enzyme action?
(1) Pollen exine
(2) Cork
(3) Leaf cuticle
(4) Wood fibre
Answer: (1) Pollen exine
Q73. The length of different internodes in a culm of sugarcane is variable because of
(1) size of leaf lamina at the node below each internode
(2) shoot apical meristem
(3) intercalary meristem
(4) position of axillary buds
Answer: (3) intercalary meristem
Q74. Vascular tissues in flowering plants develop from:
(1) periblem
(2) phellogen
(3) dermatogen
(4) plerome
Answer: (4) plerome
Q75. Passage cells are thin walled cells found in
(1) central region of style through which the pollen tube grows towards the ovary
(2) phloem elements that serve as entry points for substance for transport to other plant parts ‘
(3) endodermis of roots facilitating rapid transport of water from cortex to pericycle.
(4) testa of seeds to enable emergence of growing embryonic axis during seed germination
Answer: (3) endodermis of roots facilitating rapid transport of water from cortex to pericycle
Q76. For a critical study of secondary growth in plants. Which one of the following pairs is suitable?
(1) wheat and maidenhair fern
(2) teak and pine
(3) sugarcane and sunflower.
(4) deodar and fern
Answer: (2) teak and pine
Q77. Reduction in vascular tissue, mechanical tissue and cuticle is characteristic of:
(1) hydrophytes
(2) mesophytes
(3) xerophytes
(4) epiphytes
Answer: (1) hydrophytes
Q78. In barley stem vascular bundles are:
(1) closed and radial
(2) closed and scattered
(3) open and scattered
(4) open and in a ring
Answer: (2) closed and scattered
Q79. Palisade parenchyma is absent in leaves of:
(1) gram
(2) mustard
(3) sorghum
(4) soybean
Answer: (3) sorghum
Q80. The annular and spirally thickened conducting elements generally develop in the protoxylem when the root or stem is:
(1) differentiating
(2) elongating
(3) maturing
(4) widening
Answer: (3) maturing
Q81. Anatomically fairly old dicotyledonous root is distinguished from the dicotyledonous stem by
(1) position of protoxylem
(2) absence of secondary phloem
(3) absence of secondary xylem
(4) presence of cortex
Answer: (1) position of protoxylem
Q82. In land plants, the guard cells differ from other epidermal cells in having:
(1) endoplasmic reticulum
(2) cytoskeleton
(3) chloroplasts
(4) mitochondria
Answer: (3) chloroplasts
Q83. Ground tissue includes
(1) epidermis and cortex
(2) all tissues external to endodermis
(3) all tissues internal to endodermis
(4) all tissues except epidermis and vascular bundles
Answer: (4) all tissues except epidermis and vascular bundles
Q84. Heartwood differs from sapwood in:
(1) having dead and non -conducting elements
(2) presence of rays and fibres
(3) being susceptible to pests and pathogens
(4) absence of vessels and parenchyma
Answer: (1) having dead and non -conducting elements
Q85. Which one of the following is not a lateral meristem?
(1) Phellogen
(2) Intrafascicular cambium
(3) Intercalary meristem
(4) Interfascicular cambium
Answer: (3) Intercalary meristem
Q86. The chief water conducting elements of xylem in gymnosperms are:
(1) transfusion tissue
(2) vessels
(3) tracheids
(4) fibres
Answer: (3) tracheids
Q87. In Kranz anatomy, the bundle sheath cells have
(1) thin walls, no intercellular spaces and several chloroplasts
(2) thin walls, many intercellular spaces and no chloroplasts
(3) thick walls, many intercellular spaces and few chloroplasts
(4) thick walls, no intercellular spaces and large number of chloroplasts
Answer: (4) thick walls, no intercellular spaces and large number of chloroplasts
Q88. Some vascular bundles are described as open because these
(1) possess conjunctive tissue between xylem and phloem
(2) are surrounded by pericycle but not endodermis
(3) are not surrounded by pericycle
(4) are capable of producing secondary xylem and phloem
Answer: (4) are capable of producing secondary xylem and phloem
Q89. Function of companion cells is
(1) loading of sucrose into sieve elements by passive transport
(2) providing energy to sieve elements for active transport
(3) loading of sucrose into sieve elements
(4) providing water to phloem
Answer: (3) loading of sucrose into sieve elements
Q90. Which one of the following is wrongly matched?
(1) Root – Exarch protoxylem
(2) Root pressure – Guttation
(3) Cassia – Imbricate aestivation
(4) Puccinia – Smut
Answer: (4) Puccinia – Smut
Q91. The cork cambium, cork and secondary cortex are collectively called:
(1) periderm
(2) phelloderm
(3) phellem
(4) phellogen
Answer: (1) periderm
Q92. Gymnosperms are also called soft wood spermatophytes because they lack:
(1) Thick-walled tracheids
(2) Cambium
(3) Xylem fibres
(4) Phloem fibres
Answer: (3) Xylem fibres
Q93. Water containing cavities in vascular bundles are found in:
(1) Cycas
(2) Sunflower
(3) Pinus
(4) Maize
Answer: (4) Maize
Q94. Closed vascular bundles lack
(1) Cambium
(2) Ground tissue
(3) Pith
(4) conjunctive tissue
Answer: (1) Cambium
Q95. Companion cells are closely associated with:
(1) Trichomes
(2) Sieve elements
(3) Guard cells
(4) Vessel elements
Answer: (2) Sieve elements
Q96. The common bottle cork is a product of:
(1) Xylem
(2) Dermatogen
(3) Vascular Cambium
(4) Phellogen
Answer: (4) Phellogen
Q97. Which of the following statements is not true for stomatal apparatus?
(1) Guard cells are always surrounded by subsidiary cells
(2) Inner walls of guard cells are thick
(3) Stomata are involved in gaseous exchange
(4) Guard cells invariably possess chloroplasts and mitochondria
Answer: (1) Guard cells are always surrounded by subsidiary cells
Q98. Interfascicular cambium develops from the cells of:
(1) Pericycle
(2) Xylem parenchyma
(3) Medullary rays
(4) Endodermis
Answer: (3) Medullary rays
Q99. Lenticels are involved in:
(1) Photosynthesis
(2) Gaseous exchange
(3) Transpiration
(4) Food transport
Answer: (2) Gaseous exchange
Q100. Age of a tree can be estimated by:
(1) diameter of its heartwood
(2) biomass
(3) its height and girth
(4) number of annual rings
Answer: (4) number of annual rings
