Q.1. During formation of leaves and elongation of stem, some cells ‘ left behind’ from the shoot apical meristem, constitute __
(a) Lateral meristem
(b) Axillary bud
(c) Cork cambium
(d) Fascicular cambium
Q.2. Function of companion cells is
(a) providing energy to sieve elements for active transport.
(b) providing water to phloem.
(c) loading of sucrose into sieve elements by passive transport.
(d) loading of sucrose into sieve elements.
Q.3. The cork cambium, cork and secondary cortex are collectively called
Q.4. Which of the following does not have stomata ?
(d) Submerged hydrophytes
Q.5. The chief water conducting elements of xylem in gymnosperms are :
(c) transfusion tissue
Q.6. Which is correct about transport or conduction of substances?
(a) Organic food moves up through phloem.
(b) Organic food moves up through phloem
(c) Inorganic food moves upwardly and downwardly through xylem
(d) Organic food moves upwardly and downwardly through phloem
Q.7. A narrow layer of thin walled cells found between phloem/ bark and wood of a dicot is
(a) cork cambium
(b) vascular cambium
Q.8. Which of the following statements is true?
(a) Vessels are multicellular with narrow lumen.
(b) Tracheids are multicellular with narrow lumen.
(c) Vessels are unicellular with wide lumen.
(d) Tracheids are unicellular with wide lumen.
Q.9. The quiescent centre in root meristem serves as a
(a) site for storage of food which is utilized during maturation.
(b) reservoir of growth hormones.
(c) reserve for replenishment of damaged cells of the meristem.
(d) region for absorption of water.
Q.10. Root hair arises from
Q.11. Phellogen and phellem respectively denote
(a) cork and cork cambium
(b) cork cambium and cork
(c) secondary cortex and cork
(d) cork and secondary cortex
Q.12. The common bottle cork is a product of :
(d) Vascular cambium
Q.13. A vascular bundle in which the protoxylem is pointing to the periphery is called
Q.14. Which of the following does not have stomata?
(d) Submerged hydrophytes
Q.15. Collenchyma differs from parenchyma in having
(a) living protoplasm
(b) cellulose walls
(d) pectin deposits at corners
Q.16. Which of the following plant shows multiple epidermis?
Q.17. Epidermis is absent in
(a) root tip and shoot tip
(b) shoot bud and floral bud
(c) ovule and seed
(d) petiole and pedicel
Q.18. Which of the following layer is present nearest of plasma membrane in plant cell?
(a) Secondary wall
(b) Middle lamella
(c) Primary wall
Q.19. Which one of the following statement is false?
(i) Epidermal cell has small amount of cytoplasm and a large vacuole.
(ii) Waxy cuticle layer is absent in roots.
(iii) Root hairs are unicellular, while stem hairs / trichomes are multicellular.
(iv) Trichomes may be branched or unbranched, soft or stiff and prevent transpiration.
(v) Guard cells are dumbell shaped in dicots and beanshaped in monocots.
(a) (i) only
(b) (iv) only
(c) (iii) only
(d) (v) only
Q.20. Which option is true about heart wood/duramen?
(i) It does not help in water and mineral conduction.
(ii) It is dark coloured but soft.
(iii) It has tracheary elements filled with tannins, resins, gums, oil, etc.
(iv) It is a peripheral part.
(v) Sensitive to microbes and insects, hence least durable.
(a) (i) and (iii)
(b) (ii) and (iii)
(c) (iv) and (v)
(d) (iii) and (iv)
Q.21. In land plants, the guard cells differ from other epidermal cells in having
(c) endoplasmic reticulum
Q.22. Which of the following statement(s) is/are true?
(i) Uneven thickening of cell wall is characteristic of sclerenchyma.
(ii) Periblem forms cortex of the stem and the root.
(iii) Tracheids are the chief water transporting elements in gymnosperms.
(iv) Companion cell is devoid of nucleus at maturity.
(v) The Commercial cork is obtained from Quercus suber.
(a) (i) and (iv) only
(b) (ii) and (v) only
(c) (iii) and (iv) only
(d) (ii), (iii) and (v) only
Q.23. In endarch condition of xylem, protoxylem lies __ of metaxylem.
(a) on inner side
(b) on outer side
(c) both on inner and outer side
(d) in centre
Q.24. Y-shaped arrangement of xylem vessels is found in
(a) monocot stem
(c) monocot root
(d) dicot root
Q.25. Study carefully the following statements and select the incorrect one(s).
(i) Lateral roots develop from pericycle.
(ii) Endodermis is the innermost layer of cortex.
(iii) Sap wood is the central, dark coloured, non-conducting part of secondary xylem
(a) (i) and (ii)
(b) (ii) and (iii)
(c) (i) only
(d) (iii) only
Q.26. Removed parts of grasses by the grazing herbivores are regenerated fast by
(a) Both apical and intercalary meristems
(b) Lateral meristems only
(c) Secondary meristems
(d) Intercallary meristems
Q.27. Which of the following statement for early wood is correct?
(a) Xylary elements having narrow vessels
(b) Darker with higher density
(c) Lighter in colour and has high density
(d) Having vessels with wider cavities
Q.28. Choose correct option w.r.t origin and position of meristem reponsible for the regeneration of parts removed by the grazing herbivores.
Q.29. Companion cells are
(a) Thin, parrenchymatous, enucleated cells
(b) Thick, sclerenchymatous, nucleated cells
(c) Thin, parenchymatous, nucleated cells
(d) Thick, collenchymatous, enucleated cells
Q.30. Conjoint type of vascular bundle are present in
(a) Root, stem
(b) Root, leaves
(c) Stem, leaves
(d) Root only
Q.31. Activity of cambium is controlled by
(a) Physiological and environmental factors
(b) Hormonal and external factors
(c) Internal and external factors
(d) Move than one option is correct
Q.32. Epidermal and ground tissue system are made of
(a) Meristem and simple permanet tissue
(b) Primary and secondary meristem
(c) Simple and complex permanent tissue
(d) Simple permanent tissues
Q.33. Root region with thin-walled, small cells having dense cytoplasm is
(a) Region of cell elongation
(b) Maturation region
(c) Proximal to cell elongation zone
(d) Distal to cell elongation zone
Q.34. Periderm includes
(a) Cork and secondary cortex
(b) Only cork cambium
(c) Cork cambium and cork only
(d) Cork, phellogen and secondary cortex
Q.35. Choose incorrect statement from the given below
I. In dicot stem, the innemost layer of cortex is endodermis.
II. Endodermis with casparian strips is found in dicot stem.
III. In dicot stem, the cells of endodermis are rich in starch grain.
(a) I & II
(b) II & III
(c) I & III
(d) Only II
Q.36. The cells which lie between xylem and phloem in dicot root are
(a) Pith rays
(b) Conjuctive tissue
(c) Interfascicular cambium
(d) Intrafascicular cambium
Q.37. Which tissue of the dicot root is involved in the formation of vascular cambium?
(a) Pericyle part above primary phloem
(b) Whole pericycle
(c) Thich walled parenchymatous cells of pith
(d) Portion of pericycle above the protoxylem
Q.38. Vascular bundles in dicot leaves are
(a) Conjoint, bicollateral, closed
(b) Radia, open
(c) Conjoint, collateral, closed
(d) Conjoint, collaterl, open
Q.39. Which of the following represents the functions of veins in the leaves?
(a) Transport of water and minerals
(b) Mechanical support
(c) Transport of organic food material
(d) All of these
Q.40. In Cuscuta the nodes give rise to special roots which penetrate the host tissue upto
Q.41. A tylose is formed form :
(a) ray parenchyma
(b) inner parenchyma
(c) paratracheal parenchyma
(d) metatracheal parenchyma
Q.42. Which of the following plant shows multiple epidermis?
Q.43. In the monocot root, we obseve
(a) suberized exodermis, polyarch xylem , pith
(b) exodermis, endarch, tetarch closed bundles
(c) conjoint, collateral, open, polyarch vascular bundle
(d) suberized exodermis, casparian strip, passage cells, cambium
Q.44. In a dicotyledonous stem, the sequence of tissues from the outside to the inside is :
Q.45. The tunica corpus theory was proposed by :
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