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Anatomy of Flowering Plants  Digital www.allendigital.in [ 103 ] MERISTEM TO VASCULAR BUNDLES 1. A meristem may be defined as the group of cells which - (1) Does not divide (2) Conserve food (3) Divide continuously to give rise to new cells. (4) Elongate, mature and add to the group of cells. 2. Histogens are components of - (1) Apical meristem (2) Intercalary meristem (3) Lateral meristem (4) Secondary meristem 3. In moncotyledon roots, the histogen present at the apex of the root tip is (1) Dermatogen (2) Procambium (3) Calyptrogen (4) Plerome 4. Root cap is not found in - (1) Hollyhock (2) Pistia (3) Sunflower (4) China rose 5. How many histogens are present in monocot root apex : (1) 1 (2) 2 (3) 3 (4) 4 6. The secondary meristem originates from- (1) Promeristem (2) Primary meristem (3) Primary permanent tissue (4) Secretory tissue 7. The function of root cap is- (1) Provide protection to root apex (2) Storage of food products (3) Absorption of nutrients (4) None of the above 8. Meristem which is present inside the vascular bundle is – (1) Apical meristem (2) Intercalary meristem (3) Cork cambium (4) Intra fascicular cambium 9. Aerenchyma is helpful to plants by – (1) Providing buoyancy to hydrophytes (2) Promoting photosynthesis (3) Give mechanical strength to plants (4) Giving flexibility to plants 10. Function of collenchyma is – (1) Photosynthesis (2) Mechanical support (3) Both (1) and (2) (4) Secretion 11. In plants, which of the following cells are living (1) Xylem vessels (2) Meristem (3) Cork (4) Fibres 12. Which of the following tissues form the main bulk of storage organ- (1) Parenchyma (2) Collenchyma (3) Sclerenchyma (4) Aerenchyma 13.5. Grittness in pear fruit is due to (1) Sclereids (2) Collenchyma (3) Parenchyma (4) Meristem 14. Mechanical tissue consisting of living cells is - (1) Sclerenchyma (2) Collenchyma (3) Chlorenchyma (4) Parenchyma 15. Collenchyma differs from sclerenchyma in - (1) Retaining protoplasm at maturity (2) Having thick walls (3) Having a wide lumen (4) Being meristematic 16. Which of the following tissue provide tensile strength to young dicot stem against bending & swaying- (1) Parenchyma (2) Collenchyma (3) Sclerenchyma (4) Sclereids 17. Cell walls of sclerenchymatous cells are thickened due to deposition of - (1) Cellulose (2) Pectin (3) Lignin (4) Silica 18. Which of following plant cells are without vacuoles without nuclei and are dead - (1) Cambium cells (2) Xylem vessels (3) Root hairs (4) Companion cells Exercise - I
NEET : Biology [ 104 ] www.allendigital.in  Digital 19. Maximum bordered pits are found in tracheids of (1) Monocotyledons (2) Dicotyledons (3) Pteridophytes (4) Gymnosperms 20. The cell functionally associated with sieve tube element is - (1) Phloem fibres (2) Phloem Parenchyma (3) Companion cell (4) Collenchyma 21. Bast fibres are mostly found in - (1) Secondary xylem (2) Secondary phloem (3) Primary phloem (4) Primary xylem 22. Vessels and companion cells are respectively present in the xylem and phloem of (1) Gymnosperm (2) Pteridophyte (3) Angiosperm (4) Bryophyta 23. Phloem parenchyma is absent in - (1) Dicot stem (2) Dicot leaf (3) Monocot stem (4) Dicot root 24. Localised cell wall thickenings in collenchyma is mainly due to deposition of - (1) Cellulose (2) Pectin (3) Lignin (4) Suberin 25. The chief function of a xylem vessel in a plant body is to - (1) Conduct sap (2) Conduct mineral salts only (3) Eliminate excess of water at night (4) Translocate organic nutrients 26. End walls of tracheids and vessels are, respectively (1) Pitted & perforated (2) Perforated & pitted (3) Both perforated (4) Both pitted 27. Long and pointed sclerenchyma cells are (1) Fibres (2) Tracheae (3) Wood parenchyma (4) Sclereids 28. Sieve tubes are characterised by (1) Absence of septa (2) Simple oblique septa (3) Perforated longitudinal walls (4) Perforated oblique septa (Sieve plate) 29. P-protein is a constituent of (1) Sieve tube elements (2) Xylem parenchyma (3) Parenchyma (4) Pericycle 30. When xylem and phloem are on same radius, the vascular bundles are said to be - (1) Radial (2) Conjoint (3) Concentric (4) Exarch 31. A vascular bundle in which phloem is present on both the sides of the xylem and separated from it by strips of cambium is said to be - (1) Collateral open (2) Bicollateral open (3) Concentric (4) Bicollateral closed 32. A concentric amphivasal vascular bundle is that in which - (1) Centrally located xylem is surrounded by phloem (2) Centrally located phloem is surrounded by xylem (3) Phloem is flanked by xylem on interior side only (4) Xylem is flanked by phloem on exterior side only 33. Amphivasal vascular bundles are found in - (1) Cycas and Dryopteris (2) Dracaena and Yucca (3) Helianthus and Cucurbita (4) Maize and wheat 34. The basic difference between stem and root is that xylem in stem is - (1) Endarch (2) Exarch (3) Mesarch (4) Polyarch 35. Which xylem element is living :- (1) Vessels (2) Tracheids (3) Fibre (4) Parenchyma 36. Dead cells with narrow lumen, lignified cell wall with a few or numerous pits and serving a mechanical function only are called :- (1) Collenchyma (2) Xylem (3) Aerenchyma (4) Sclerenchyma
Anatomy of Flowering Plants  Digital www.allendigital.in [ 105 ] 37. Grittiness of fruit in pears is due to :- (1) Presence of silica (2) Presence of stone cells/sclereids (3) Presence of raphids (4) Formation of cystolith 38. Vessels are found in :- (1) All angiosperms and some gymnosperm (2) Most of the angiosperms and few gymnosperms (3) All angiosperms, all gymnosperms and some pteridophyte (4) All pteridophyte 39. The tracheids differ from vessels in having :- (1) Lignified wall Tracheid (2) Pits (3) Presence of pitted end wall (4) Spiral thickening 40. Sieve tube are best suited for translocation of solutes because :- (1) They are much broader than long (2) They possess no end wall (3) They have higher number of pits (4) It's sieve tube elements have interconnected lumen 41. Function of companion cells is to :- (1) Provide energy to sieve elements for active transport (2) Provide water to phloem (3) Loading of sucrose into sieve elements by passive transport (4) Loading of sucrose into sieve elements PRIMARY INTERNAL STRUCTURE TO SECONDARY GROWTH 42. A tissue of epiphytes which is capable of absorbing water from air is known as - (1) Cork (2) Velamen (3) Epiblema (4) Hypodermis 43. Collenchymatous hypodermis is characteristic feature of - (1) Dicot stem (2) Monocot stem (3) Monocot as well as dicot stem (4) Hydrophytes 44. Innumerable (many) vascular bundles, lack of cambium and lack of a well demarcated pith is found in – (1) Sugarcane, Grass (2) Sunflower, Neem (3) Radish, Neem (4) Pea, Peepal 45. Cortex and pith are not distinguished in - (1) Monocot stem (2) Monocot root (3) Dicot stem (4) Dicot root 46. What is the characteristics of a vascular bundle of monocot stem - (1) Open and surrounded by a sclerenchymatous bundle sheath (2) Closed and not surrounded by bundle sheath (3) Closed and surrounded by bundle sheath (4) Open and not surrounded by a bundle sheath 47. In dicot root (1) Vascular bundles are scattered with cambium (2) Vascular bundles are open and arranged in a ring (3) Xylem and pholem are radial (4) Xylem is always endarch 48. A dicot root differs from a monocot root in which of the following- (1) Presence of piliferous layer (2) Presence of exodermis (3) Presence of ill-developed (Poorly developed) pith (4) Separate radial vascular bundle 49. Polyarch and exarch xylem is the characteristic of- (1) Dicot stem (2) Dicot root (3) Monocot stem (4) Monocot root 50. Water cavity & V or Y-shaped xylem occurs in (1) Dicot stem (2) Monocot root (3) Monocot stem (4) Dicot root 51. In which of the following order, an exarch xylem develops - (1) Centripetal (2) Centrifugal (3) Both centripetal & centrifugal (4) Irregular
NEET : Biology [ 106 ] www.allendigital.in  Digital 52. Vascular bundles in Cucurbita stem are - (1) Bicollateral & open (2) Bicollateral & closed (3) Collateral & open (4) Amphivasal 53. Position of xylem & phloem in leaf respectively - (1) Abaxial & Adaxial (2) Adaxial & Abaxial (3) Both Adaxial (4) Both abaxial 54. In dicot stem, hypodermis is (1) Parenchymatous (2) Sclerenchymatous (3) Collenchymatous (4) Chlorenchymatous 55. In leaves, the vascular bundles are (1) Bicollateral & open (2) Collateral & open (3) Collateral & closed (4) Radial & exarch 56. Vascular bundles are scattered in ground tissue (Atactostele) in - (1) Maize stem (2) Sunflower stem (3) Gram root (4) Isobilateral leaf 57. The hypodermis present in maize stem is - (1) Parenchymatous (2) Collenchymatous (3) Sclerenchymatous (4) Meristematic 58. Passage cells are found in endodermis of- (1) Dicot stem (2) Monocot stem (3) Orchid stem (4) Monocot root 59. Pith is produced by (1) Ground meristem (2) Procambium (3) Periblem (4) Dermatogen 60. Sugar transport elements of gymnosperms & pteridophytes are - (1) Sieve cells (2) Sieve elements (3) Sieve tubes (4) Sieve tube elements 61. When protoxylem faces pericycle, it is called (1) Endarch (2) Mesarch (3) Exarch (4) Polyarch 62. Which wood conduct sap - (1) Heart wood (2) Sap wood (3) Wood with lots of fibres and tyloses (4) All of the above 63. Phelloderm is formed by - (1) Vascular cambium (2) Phellogen (3) Fascicular cambium (4) Interfascicular cambium 64. Dendrochronology is the study of determination of- (1) Height of a tree (2) Diameter of a tree (3) Age of a tree with the help of annual rings (4) Counting of the number of branches 65. A timber merchant told his customer that log of wood which he was purchasing comes from a 20 years old tree, he told so by inspecting the - (1) Diameter of log (2) Thickness of the heart wood (3) Number of cork layers (4) Annual rings 66. In trees, the annual rings represent (1) Primary xylem (2) Secondary xylem (3) Secondary phloem (4) Cambium 67. Annual rings are the bands of- (1) Secondary cortex and cork (2) All secondary vascular tissue (3) Secondary xylem and xylem rays (4) Secondary phloem and medullary rays 68. Growth rings are formed due to the activity of- (1) Intrastelar cambium (2) Intercalary cambium (3) Extrastelar cambium (4) Primary cambium 69. When a tree grows older which of the following increased rapidly - (1) Heart wood (2) Sap wood (3) Pith (4) Cortex 70. Lenticels do not occur on- (1) Stem (2) Root (3) Leaf (4) Fruit 71. External protective tissues are - (1) Cortex and epidermis (2) Cork and pericycle (3) Cortex and pericycle (4) Cork and epidermis