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Quiz 7
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Q.1
Vascular bundles surrounded by sclerenchymatous sheath occur in ... ..[ RPMT 1991]
0%
a) Monocot stem
0%
b) Dicot stem and leaf
0%
c) Monocot root
0%
d) Dicot root
Explanation
Answer : (a)
Q.2
In dicot root, the outermost layer of tubular living cells is ... ... [ Tamil nadu 2001]
0%
a) Rhizodermis
0%
b) Epidermis
0%
c) hypodermis
0%
d) Exodermis
Explanation
Answer : (a)
Q.3
Companion cells are associated with ... .. [ MPPMT 2000]
0%
a) Xylem
0%
b) Cambium
0%
c) Sieve tubes
0%
d) Collenchyma
Explanation
Answer : (c)
Q.4
What differentiates a dicot leaf from monocot leaf ... ..[ BHU 2008]
0%
a) Stomata only on upper side
0%
b) Differentiation of palisade and spongy parenchyma
0%
c) Parallel venation
0%
d) Stomata on upper and lower sides
Explanation
Answer : (b)
Q.5
Shoot apical meristem occurs over the tip of ... ...[ Odisha 2008]
0%
a) Root
0%
b) Radicle
0%
c) Plumule
0%
d) Mesocotyl
Explanation
Answer : (c)
Q.6
One growth ring consists of ... ... [ KCET 2002]
0%
a) Springwood and early wood
0%
b) Only spring wood
0%
c) Only autumn wood
0%
d) Spring wood and autumn wood
Explanation
Answer : (d)
Q.7
Bordered pits are more common in ... .... [ CPMT 1993]
0%
a) Monocots
0%
b) Dicots
0%
c) Gymnosperms
0%
d) All the above
Explanation
Answer : (c)
Q.8
Innermost layer of cortex is .. ... [ Wardha 2001]
0%
a) Endodermis
0%
b) Epidermis
0%
c) Exodermis
0%
d) Hypodermis
Explanation
Answer : (a)
Q.9
Function of companion cells is ... ... [ CBSE 2011]
0%
a) Providing energy to sieve elements for active transport
0%
b) Loading sucrose into sieve elements by passive transport
0%
c) Providing water to phloem
0%
d) Loading sucrose into sieve elements
Explanation
Answer : (d)
Q.10
Quiescent centre occurs in .. .. [ RPMT 1988]
0%
a) Root cap
0%
b) Vegetative shoot apex
0%
c) Reproductive shoot apex
0%
d) Root apex
Explanation
Answer : (d)
Q.11
Cork cells are impervious due to deposit of ... .. [ AFMC 1985]
0%
a) Cutin
0%
b) Lignin
0%
c) Suberin
0%
d) Chitin
Explanation
Answer : (c)
Q.12
The waxy substance associated with the walls of cork or the walls of cork cells are mostly impregnated with ... ..[ MPPMT 2000]
0%
a) Cutin
0%
b) Suberin
0%
c) Lignin
0%
d) Hemicellulose
Explanation
Answer : (b)
Q.13
Vascular cambium produces ... .. [ RPMT 2006]
0%
a) Secondary xylem and secondary phloem
0%
b) Secondary xylem only
0%
c) Secondary phloem only
0%
d) Primary
Explanation
Answer : (a)
Q.14
Closed vascular bundles lack ... .. [ CBSE 2012]
0%
a) Ground tissue
0%
b) Conjunctive tissue
0%
c) Cambium
0%
d) Pith
Explanation
Answer : (c)
Q.15
Secondary xylem is ... ... [ JKCMEE 2002]
0%
a) Bast
0%
b) Bark
0%
c) Cork
0%
d) Wood
Explanation
Answer : (d)
Q.16
Vessels occur in .. .. [ CBSE 2002]
0%
a) All angiosperms all gymnosperms and some pteridophytes
0%
b)All angiosperms and some gymnosperms
0%
c) Most angiosperms, a few gymnosperms and pteridophytes
0%
d) All pteridophytes
Explanation
Answer : (c)
Q.17
Monocot root differs from dicot root in having ... .. [ RPMT 2005]
0%
a) Open vascular bundles
0%
b) Scattered vascular bundles
0%
c) Well developed pith
0%
d) Radially arranged vascular bundles
Explanation
Answer : (c)
Q.18
Sunken stomata occur in ... .. [ CBSE 2001]
0%
a) Mango
0%
b) guava
0%
c) hydrilla
0%
d) Nerium
Explanation
Answer : (d)
Q.19
Cambial cells are formed from ... [ Har PMT 2001]
0%
a) Promeristem
0%
b) Premeristem
0%
c) Parenchyma
0%
d) All the above
Explanation
Answer : (a)
Q.20
Annular and spirally thickened conducting elements generally develop in protoxylem when root or stem is ... .. [ CBSE 2009]
0%
a) Widening
0%
b) Differentiating
0%
c) Maturing
0%
d) Elongating
Explanation
Answer : (d)
Q.21
Fascicular cambium of dicot stems is ... .. [ CPMT 1990]
0%
a) Apical meristem
0%
b) Primary meristem
0%
c) Secondary meristem
0%
d) Intercalary meristem
Explanation
In the beginning, the fascicular cambium is a primary meristem, later during the secondary growth; it gets transformed into a secondary meristem. Answer : (b)
Q.22
(a) In a vessel septa between adjacent cells get dissolved (b) Companion cells are components of phloem What is correct about these statements ... .. [ JKCMEE 2003]
0%
a) Both are wrong
0%
b) a is wrong but b is correct
0%
c) a is wrong but b is correct
0%
d) Both are correct
Explanation
Answer : (d)
Q.23
Vascular bundles of Cucurbita stem are ... .. [ CPMT 1996]
0%
a) Collateral
0%
b) Bicollateral
0%
c) Radial
0%
d) Concentric
Explanation
Answer : (b)
Q.24
In autumn and winter, cambium produces ... .. [ Odisha 2007]
0%
a) Sap wood
0%
b) Heart wood
0%
c) Early wood
0%
d) Late wood
Explanation
Answer : (d)
Q.25
Bundle sheath is absent around vascular bundles of ... .. [ JIPMER 1999]
0%
a) Dicot stem
0%
b) Monocot stem
0%
c) Dicot leaf
0%
d) Monocot leaf
Explanation
Answer : (a)
Q.26
Collenchyma produces ... .. [ BHU 1996]
0%
a) Epidermis
0%
b) Hypodermis
0%
c) Inner cortex
0%
d) Phloem
Explanation
Answer : (b)
Q.27
Phellogen is also known as ... ... [ BHU 2007]
0%
a) Vascular cambium
0%
b) Periderm
0%
c) Cork cambium
0%
d) Apical meristem
Explanation
Answer : (c)
Q.28
In roots, lateral branches grow from ... .. [ AIIMS 1999]
0%
a) Epiblema
0%
b) Pericycle
0%
c) Cortex
0%
d) Endodermis
Explanation
Answer : (b)
Q.29
Lenticels do not occur on ... ... [ RPMT 1992]
0%
a) Fruit
0%
b) Root
0%
c) Stem
0%
d) Leaf
Explanation
Answer : (d)
Q.30
Which one contains chloroplasts ... .... [ CMC 2002]
0%
a) Collenchyma and sclerenchyma
0%
b) Sclerenchyma and parenchyma
0%
c) Chlorenchyma and sclerenchyma
0%
d) Chlorenchyma and parenchyma
Explanation
Answer : (d)
Q.31
Cambium produces growth in ... .. [ RPMT 2005]
0%
a) Branches
0%
b) Girth
0%
c) Pith
0%
d) Cortex
Explanation
Answer : (b)
Q.32
Which one is responsible for radial conduction of water and food in woody stem? ... .. [ AMU 1997]
0%
a) Vessels
0%
b) Vascular rays
0%
c) Endodermis
0%
d) Xylem fibres
Explanation
Answer : (b)
Q.33
Tunica corpus theory was proposed by ... .. [ JIPMER 1999]
0%
a) Schmidth
0%
b) Nageli
0%
c) Hanstein
0%
d) Hofmeister
Explanation
Answer : (a)
Q.34
Phloem tissue of angiosperms differs from that of gymnosperms in having ... .. [ Pb PMT 1997]
0%
a) Companion cells
0%
b) Sieve cells
0%
c) Sieve plates
0%
d) None of the above
Explanation
Answer : (a)
Q.35
Periderm includes ... ... [ MPPMT 2010]
0%
a) Cork cambium (phellogen), cork (phellem) and secondary cortex (phelloderm)
0%
b) Cork cambium and cork
0%
c) Cork
0%
d) Cork and secondary phloem
Explanation
Answer : (a)
Q.36
Complementary cells occur in ... .. [ WB 2012]
0%
a) Pericycle
0%
b) Pith
0%
c) Lenticels
0%
d) Endodermis
Explanation
Answer : (c)
Q.37
Vascular bundle having cambium is ... ..[ RPMT 1990]
0%
a) Open
0%
b) Closed
0%
c) Collateral
0%
d) Conjoint
Explanation
Answer : (a)
Q.38
Three radial vascular bundles are present in ... .. [ RPMT 1998]
0%
a) Monocot stem
0%
b) Monocot root
0%
c) Dicot stem
0%
d) Dicot root
Explanation
Answer : (d)
Q.39
Find the incorrect statement .. .. [ AMU 2010]
0%
a) Root hairs are unicellular elongations
0%
b) Trichome are unicellular elongations
0%
c) Trichome are multicellular elongations
0%
d) Root hairs absorb water and minerals
Explanation
Answer : (b)
Q.40
A.T.S. of stem is stained first with safranin and then fast green. What would be the colour of phloem? [ AIIMS 2000 ]
0%
a) Red
0%
b) Green
0%
c) Orange
0%
d) Purple
Explanation
Answer : (b)
Q.41
Tyloses occur in ... ... [ har PMT 2001]
0%
a) Autumn wood
0%
b) Spring wood
0%
c) Heart wood
0%
d) Sap wood
Explanation
Answer : (c)
Q.42
Lateral meristems are ... .. [ KCET 2010]
0%
a) Phellogen and procambium
0%
b) Procambium and dermatogen
0%
c) Fascicular cambium and procambium
0%
d) Fascicular cambium and cork cambium
Explanation
Answer : (d)
Q.43
Vascular bundles occur in a leaf ... .. [ CMC 2003]
0%
a) Entire lamina
0%
b) Palisade parenchyma
0%
c) Spongy parenchyma
0%
d) Veins and veinlets
Explanation
Answer : (d)
Q.44
A component of xylem is ... .. [ MPPMT 1999]
0%
a) Sieve tube
0%
b) Medullary ray
0%
c) Sclereids
0%
d) Tracheid
Explanation
Answer : (d)
Q.45
Procambium forms ... .. [ CBSE 1994]
0%
a) Only primary vascular bundles
0%
b) Only vascular cambium
0%
c) Only cork cambium
0%
d) Primary vascular bundles and vascular cambium
Explanation
Answer : (a)
Q.46
Major difference between phloem of angiosperms and gymnosperms is .. .. [ RPMT 2002]
0%
a) Sieve tube
0%
b) Medullary rays
0%
c) Bast fibre
0%
d) Companion cells
Explanation
The sieve tube elements of angiosperms (mono- and dicots), but not those of pteridophytes and gymnosperms are associated with companion cells. In Ginkgo and other gymnosperms their function is taken over by specialized parenchyma cells, that resemble companion cells in structure: the albuminous cells Answer : (a)
Q.47
A narrow layer of thin-walled cells found between phloem/bark and wood of a dicot is ... ... [ JIPMER 1996]
0%
a) Cork cambium
0%
b) Vascular cambium
0%
c) Endodermis
0%
d) Pericycle
Explanation
Answer : (b)
Q.48
Youngest layer of secondary xylem in wood of dicot stem is located just ... .. [ BHU 2000 ]
0%
a) Outside the cambium
0%
b) Inside the cambium
0%
c) Outside the pith
0%
d) inside the cortex
Explanation
Answer : (b)
Q.49
A leptocentric or amphivasal vascular bundle has ... .. [ RPT 1998]
0%
a) Phloem flanked by xylem on interior and exterior sides only
0%
b) Xylem flanked by phloem on interior and exterior sides only
0%
c) Xylem surrounded by phloem
0%
d) Phloem surrounded completely by xylem
Explanation
Answer : (d)
Q.50
In which of the following sclerenchyma cells, the secondary cell walls are present ... ..
0%
a) The cells containing cytoplasm only
0%
b) The cells with protoplast
0%
c) Cell which are living at maturity
0%
d) Cell which are non-living at maturity
Explanation
Answer : (d)
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