Q1. Quiescent centre is present in the

• A) apical meristem
• B) shoot meristem
• C) lateral meristem
• D) root meristem

Q2. Closed vascular bundles lacks

• A) pith
• B) xylem
• C) cambium
• D) xylem vessels

Q3. Which of the following is not a feature of spring wood?

• A) Color of the wood is light.
• B) Density is less.
• C) Cambium is active.
• D) Lesser number of xylary elements.

Q4. In a monocot leaf

• A) bulliform cells are absent from the eqidermis
• B) veins from a network
• C) mesophyll is well differentiated into palisade and spongy parenchyma
• D) mesophyll is not differentiated into palisade and spongy parenchyma

Q5. A.T.S. of a young dicot root can be distinguished from that of a young dicot stem by the presence of

• A) radial arrangement of xylem and phloem
• B) collateral arrangement of xylem and phloem
• C) interfascicular cambium
• D) intrafascicular cambium

Q6. Fusifrom initial cells of cambium from

• A) vascular rays
• B) tracheary elements
• C) ray parenchyma
• D) phloem parenchyma

Q7. Callose deposition is found in

• A) tracheids
• B) companion cells
• C) sieve areas
• D) phloem parenchyma

Q8. Stem develops from

• A) radicle
• B) cotyledon
• C) mesocarp
• D) plumule

Q9. Stem grows in girth due to

• A) outer cortical
• B) epidermis
• C) vascular cambium
• D) phellogen

Q10. Which of the following is true about heartwood?

• A) They are dead but gives mechanical support to stem
• B) They are light in color
• C) They conduct water and minerals.
• D) 1 and 3

Q11. Pith is very well developed in

• A) monocot root and monocot stem
• B) monocot root and dicot root
• C) dicot root and monocot stem
• D) monocot root and dicot stem

Q12. Which of the following helps in the curling of the leaf surface?

• A) Bulliform cells
• B) Xylem tissue
• C) Palisade parenchyma
• D) Bundle sheath cells

Q13. Walls of sclerenchyma are

• A) rigid
• B) lignified
• C) pectinised
• D) suberised

Q14. Fusifrom initial cells of cambium from

• A) vascular rays
• B) tracheary elements
• C) ray parenchyma
• D) phloem parenchyma

Q15. Closed vascular bundles lacks

• A) pith
• B) xylem
• C) cambium
• D) xylem vessels

Q16. After the secondary growth, the oldest layer of secondary phloem in a dicot stem is located

• A) just outside the vascular cambium
• B) just inside the vascular cambium
• C) just inside the vascular phloem
• D) just outside the secondary xylem

Q17. The innermost layer of cortex which shows casparian thickenings in its cells is called as

• A) epidermis
• B) endodermis
• C) pericycle
• D) exodermis

Q18. Vessels differ from tracheids

• A) in being living
• B) in being derived from a single cell
• C) in that they consist of vertical row of cells with cross walls dissolved
• D) in coducting water and minerals

Q19. Endodermis cells are rich in

• A) cellulose
• B) starch grains
• C) fibers
• D) resins and wax

Q20. Formation of secondary xylem and phloem respectively

• A) Centrifugal and centripetal
• B) Centripetal and centrifugal
• C) Both centripetal
• D) Both centrifugal

Q21. Bark includes all the tissues

• A) Lying outside the vascular cambium
• B) Formed by vascular cambium
• C) Formed by phellogen
• D) Phellem & phelloderm

Q22. Living tissue in lenticel is called

• A) Conjunctive tissue
• B) Connective tissue
• C) Complementary tissue
• D) Phelloderm

Q23. Which among the following are elongated or tube like cells with thick and lignified walls and tapering ends?

• A) Xylem fibres
• B) Xylem parenchyma
• C) vessels
• D) Tracheids

Q24. Which of the following provide maximum mechanical strength to a tree trunk.

• A) Heart wood
• B) Sap wood
• C) Cork
• D) Late wood

Q25. Vessels and companion cells are respectively present in the xylem and phloem of

• A) Gymnosperm
• B) Pteridophytes
• C) Angiosperm
• D) Bryophyta