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1 of 25
Q.1 Quiescent centre is present in the
- apical meristem
- shoot meristem
- lateral meristem
- root meristem
2 of 25
Q.2 Closed vascular bundles lacks
- pith
- xylem
- cambium
- xylem vessels
3 of 25
Q.3 Which of the following is not a feature of spring wood?
- Color of the wood is light.
- Density is less.
- Cambium is active.
- Lesser number of xylary elements.
4 of 25
Q.4 In a monocot leaf
- bulliform cells are absent from the eqidermis
- veins from a network
- mesophyll is well differentiated into palisade and spongy parenchyma
- mesophyll is not differentiated into palisade and spongy parenchyma
5 of 25
Q.5 A.T.S. of a young dicot root can be distinguished from that of a young dicot stem by the presence of
- radial arrangement of xylem and phloem
- collateral arrangement of xylem and phloem
- interfascicular cambium
- intrafascicular cambium
6 of 25
Q.6 Fusifrom initial cells of cambium from
- vascular rays
- tracheary elements
- ray parenchyma
- phloem parenchyma
7 of 25
Q.7 Callose deposition is found in
- tracheids
- companion cells
- sieve areas
- phloem parenchyma
8 of 25
Q.8 Stem develops from
- radicle
- cotyledon
- mesocarp
- plumule
9 of 25
Q.9 Stem grows in girth due to
- outer cortical
- epidermis
- vascular cambium
- phellogen
10 of 25
Q.10 Which of the following is true about heartwood?
- They are dead but gives mechanical support to stem
- They are light in color
- They conduct water and minerals.
- 1 and 3
11 of 25
Q.11 Pith is very well developed in
- monocot root and monocot stem
- monocot root and dicot root
- dicot root and monocot stem
- monocot root and dicot stem
12 of 25
Q.12 Which of the following helps in the curling of the leaf surface?
- Bulliform cells
- Xylem tissue
- Palisade parenchyma
- Bundle sheath cells
13 of 25
Q.13 Walls of sclerenchyma are
- rigid
- lignified
- pectinised
- suberised
14 of 25
Q.14 Fusifrom initial cells of cambium from
- vascular rays
- tracheary elements
- ray parenchyma
- phloem parenchyma
15 of 25
Q.15 Closed vascular bundles lacks
- pith
- xylem
- cambium
- xylem vessels
16 of 25
Q.16 After the secondary growth, the oldest layer of secondary phloem in a dicot stem is located
- just outside the vascular cambium
- just inside the vascular cambium
- just inside the vascular phloem
- just outside the secondary xylem
17 of 25
Q.17 The innermost layer of cortex which shows casparian thickenings in its cells is called as
- epidermis
- endodermis
- pericycle
- exodermis
18 of 25
Q.18 Vessels differ from tracheids
- in being living
- in being derived from a single cell
- in that they consist of vertical row of cells with cross walls dissolved
- in coducting water and minerals
19 of 25
Q.19 Endodermis cells are rich in
- cellulose
- starch grains
- fibers
- resins and wax
20 of 25
Q.20 Formation of secondary xylem and phloem respectively
- Centrifugal and centripetal
- Centripetal and centrifugal
- Both centripetal
- Both centrifugal
21 of 25
Q.21 Bark includes all the tissues
- Lying outside the vascular cambium
- Formed by vascular cambium
- Formed by phellogen
- Phellem & phelloderm
22 of 25
Q.22 Living tissue in lenticel is called
- Conjunctive tissue
- Connective tissue
- Complementary tissue
- Phelloderm
23 of 25
Q.23 Which among the following are elongated or tube like cells with thick and lignified walls and tapering ends?
- Xylem fibres
- Xylem parenchyma
- vessels
- Tracheids
24 of 25
Q.24 Which of the following provide maximum mechanical strength to a tree trunk.
- Heart wood
- Sap wood
- Cork
- Late wood
25 of 25
Q.25 Vessels and companion cells are respectively present in the xylem and phloem of
- Gymnosperm
- Pteridophytes
- Angiosperm
- Bryophyta
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