1.The apical meristem of the root is present.
(a) Only in the radical
(b) Only in adventitious root.
(c) Only in tap roots
(d) In all the roots
Answer
Ans.(d)
2. Vascular tissue in flowering plants develops from.
(a) Periblem
(b) Phellogen
(c) Dermatogen
(d) pleorome.
Answer
Ans.(d)
3. Palisade parenchyma is absent in leaves of ..
(a) Mustard
(b) Gram
(c) Syabean
(d) Sorghum.
Answer
Ans.(d)
4. Casparian strips are the characterstics of ..
(a) Cortex
(b) Endodermis
(c) Pericycle
(d) Pith
Answer
Ans.(b)
5. Root cap is formed by…
(a) Dermatogen
(b) Vascular cambium
(c) Calyptrogen
(d) Wound cambium.
Answer
Ans.(c)
6. Lenticels and hydathodes are small pores with which of the the common attributes ?
(a) They are always closed
(b) They allow exchange of gases.
(c) Their opening and closing are not regulated
(d) They are found on the same organ of plant.
Answer
Ans.(b)
7. The functions of vessel is ..
(a) To provide mechanical streant
(b) Conduction of water and minerals
(c) Conduction of food only
(d) All of these .
Answer
Ans.(b)
8. Cambium is ..
(a ) Lateral meristem
(b) Intercalary meristem.
(c) Primary meristem
(d ) Nome of above.
Answer
Ans.(c)
9. Cork cell contains…
(a) Suberin.
(b)Cutin
(c) Lignin
(d) Pectin
Answer
Ans.(a)
10. Root branches arise from .
(a) Pericycle
(b) Endodermis
(c) Cortex
(d ) Epidermis.
Answer
Ans.(a)
11. Procambium forms..
(a)cork cambium
(b) vascular tissue
(C) vascular cambium
(d) intercalary meristem
Answer
Ans.(b)
12. Another name of phellogen is
(a)cork
(b) phelloderm
(c) cork cells
(d) cork cambium
Answer
Ans.(d)
13. The stem of submerged hyrophytes is soft & weak due to
(a) absence of xylem
(b) absence of stomatals
(c)absence of phloem
(d) reduced mechanical tissue & xylem
Answer
Ans.(d)
14. which of the following is enucleated?
(a) vessels
(b) sieve cells
(c)compound cells
(d) tracheids
Answer
Ans.(b)
15. Functional xylem in dicot stem is:
(a) spring wood
(b) autumn wood
(c) heart wood
(d) sap wood
Answer
Ans.(d)
16. Wood is common name of
(a)Cambium
(b) vascular bundles
(c) phloem
(d)secondary xylem
Answer
Ans.(d)
17.Evergreen trees remains greenthroughout the year on account of
(a)absence of leaf fall
(b) cold climate
(c) supply of moisture throughout the year
(d) leaves falling in small no. at regular intervals.
Answer
Ans.(c)
18. Sap wood is synomymous with
(a) bark
(b) periderm
(c) outer layer of secondary xylem
(d) inner layer of secondary xylem
Answer
Ans.(c)
19. The waxy substance associated with the wall of cork cell is…
(a) cutin
(b) suberin
(c) lignin
(d) hemicellulose
Answer
Ans.(b)
20. Which of the following tissue originate from ray initials of cambium?
(a)tracheids & vessels
(b) sieve tubes & companion cells
(c) xylem & phloem fibres
(d) vascular rays
Answer
Ans.(d)
21. Abnormal secondary growth is found in..
(a) dracaena & yucca
(b) triticum
(c) helianthus
(d) cucurbita
Answer
Ans.(a)
22. Diffuse porous woods are characteristic of plant growing in
(a) alpine region
(b) cold winter region
(c) temperate climate
(d) tropics
Answer
Ans.(c)
23. The healing of wounds in plants takes place by activity of
(a)apical meristem
(b) lateral meristem
(c) secondary meristem
(d)intercalary meristem
Answer
Ans.(c)
24. The process of conversion of meristamatic tissue to permanent cell is….
(a) dedifferention
(b) undifferentation
(c) differentiation
(d) none of these.
Answer
Ans.(c)
25. which is livimg mechanical tissue
(a) phloem
(b) parenchyma
(c) collenchyma
(d) sclerenchyma.
Answer
Ans.(c)
26. Cambium activity is highest in ..
(a) spring
(b) winter
(c) atumn
(d) rainy
Answer
Ans.(a)
27. Which of the following cells are selcreatory as well as excreatory in function?
(a)oil glands of plants
(b)latex cells
(c) sudoriferous cells
(d) none of these.
Answer
Ans.(b)
28. sieve tube is…
(a) enucleated
(b) dead cells
(c) multinucleated
(d) nucleated.
Answer
Ans.(a)
29. Biocollateral vascular bundle is a charactersistic feature of family..
(a) cucurbitaceae
(b) cruciferae
(c) brassicaceae
(d) solanaceae
Answer
Ans.(a)
30. Exarch primary xylem is a feature of
(a) all leaves
(b) dicot stem
(c) all roots
(d) monocot stems.
Answer
Ans.(c)
31. Duramen is
(a)periderm
(b) bark
(c) sapwood
(d) heartwood
Answer
Ans.(d)
32. Shoot apical meristem is found in the tip of
(a)plumule
(b) radicle
(c) root
(d) apex
Answer
Ans.(d)
33. Piths are formed on the cell wall due to lack of-
(a) cell plate
(b) Primary wall material
(c) Secondary wall material
(d) Middle lamella.
Answer
Ans.(c)
34. Annual ring are found in plants belonging to-
(a) Alpine regions
(b) Temperate area
(c) Tropics
(d) Near sea beaches .
Answer
Ans.(b)
35. Histogen theory was produced by.
(a) Hanstein
(b) Eamu
(c) Esamam
(d) Schmidit.
Answer
Ans.(a)
36. Mesarch xylem is common in.
(a) Ferns
(b)Dicots
(c) Bryophytes
(c) Monocots.
Answer
Ans.(a)
37. Desert grasses often roll their leaves due to presence of—
(a) Oily surface
(b) Bulliform cells
(c) Spines
(d) All of these.
Answer
Ans.(b)
38. Jute is a..
(a) Bast fibre from secondary xylem.
(b) Bast fibres from primary xylem.
(c) Bast fibres from secondary phloem.
(d) Bast fibres from primary phloem.
Answer
Ans.(c)
39. Which among the permanent cells are circular and long even elongated cells ?
(a) Prenchyma
(b)collenchyma
(c) Sclerenchyma
(d) None of these.
Answer
Ans.(c)
40. Stele is made up of –
(a) Vascular bundles
(b) Pericycle
(c) Pith
(d) All of these .
Answer
Ans.(d)
41. Which of the following is the correct statement. ?
(a) Pith is larger in monocot root.
(b) Pith is smaller in dicot root.
(c) Pith is equal in size in both.
(d) Both (a ) and (b).
Answer
Ans.(d)
42. Which of the following is collectively known as periderm ?
(a) Phellogen .
(b) Phellem
(c) Phelloderm
(d) All of these .
Answer
Ans.(d)
43. Wood is common name of
(a)cambium
(b)vascular bundles
(c) phloem
(d) secondary xylem
Answer
Ans.(d)
44. As a tree grows older , which increases rapidly in thickness
(a)its heartwood
(b) its sapwood
(c) its cortex
(d) its phloem
Answer
Ans.(d)
45. In old tissue gaseseous exchange takes place through
(a)stomata
(b) arenchyma
(c) hydathodes
(d)lenticles
Answer
Ans.(d)
46. Cork cambium in a dicot root is derived from
(a) hypodermis
(b)epidermis
(c) pericycle
(d)cortex
Answer
Ans.(c)
47. In hollow hearted plant
(a) root woll die first
(b) shoot will die first
(c)root and shoot will die at same time
(d) neither will die
Answer
Ans.(a)
48. Quinine , imp. in treatment of malaria is exctracted from
(a)bark of cinchona
(b)bark of cinnamon
(c)bark of hevea
(d) fascicular cambium
Answer
Ans.(a)
49. Interfascicular cambium is situated
(a) in between vascular bundles
(b)outside vascular bundles
(c)inside vascular bundles
(d)in pith
Answer
Ans.(c)
50. The cork is an excellent material for making bottle stoppers since it is..
(a) cheap
(b) easily available
(c) air tight
(d) light
Answer
Ans.(c)
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