Vascular bundles surrounded by sclerenchymatous sheath occur in ... ..[ RPMT 1991]
0%
a) Monocot stem
100%
b) Dicot stem and leaf
0%
c) Monocot root
0%
d) Dicot root
Q.2.
In dicot root, the outermost layer of tubular living cells is ... ... [ Tamil nadu 2001]
50%
a) Rhizodermis
0%
b) Epidermis
0%
c) hypodermis
50%
d) Exodermis
Q.3.
Companion cells are associated with ... .. [ MPPMT 2000]
50%
a) Xylem
0%
b) Cambium
0%
c) Sieve tubes
50%
d) Collenchyma
Q.4.
What differentiates a dicot leaf from monocot leaf ... ..[ BHU 2008]
50%
a) Stomata only on upper side
50%
b) Differentiation of palisade and spongy parenchyma
0%
c) Parallel venation
0%
d) Stomata on upper and lower sides
Q.5.
Shoot apical meristem occurs over the tip of ... ...[ Odisha 2008]
0%
a) Root
50%
b) Radicle
50%
c) Plumule
0%
d) Mesocotyl
Q.6.
One growth ring consists of ... ... [ KCET 2002]
0%
a) Springwood and early wood
50%
b) Only spring wood
0%
c) Only autumn wood
50%
d) Spring wood and autumn wood
Q.7.
Bordered pits are more common in ... .... [ CPMT 1993]
0%
a) Monocots
0%
b) Dicots
0%
c) Gymnosperms
100%
d) All the above
Q.8.
Innermost layer of cortex is .. ... [ Wardha 2001]
0%
a) Endodermis
100%
b) Epidermis
0%
c) Exodermis
0%
d) Hypodermis
Q.9.
Function of companion cells is ... ... [ CBSE 2011]
100%
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
Q.10.
Quiescent centre occurs in .. .. [ RPMT 1988]
0%
a) Root cap
0%
b) Vegetative shoot apex
100%
c) Reproductive shoot apex
0%
d) Root apex
Q.11.
Cork cells are impervious due to deposit of ... .. [ AFMC 1985]
0%
a) Cutin
0%
b) Lignin
0%
c) Suberin
100%
d) Chitin
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
100%
c) Lignin
0%
d) Hemicellulose
Q.13.
Vascular cambium produces ... .. [ RPMT 2006]
100%
a) Secondary xylem and secondary phloem
0%
b) Secondary xylem only
0%
c) Secondary phloem only
0%
d) Primary
Q.14.
Closed vascular bundles lack ... .. [ CBSE 2012]
100%
a) Ground tissue
0%
b) Conjunctive tissue
0%
c) Cambium
0%
d) Pith
Q.15.
Secondary xylem is ... ... [ JKCMEE 2002]
0%
a) Bast
0%
b) Bark
100%
c) Cork
0%
d) Wood
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
100%
d) All pteridophytes
Q.17.
Monocot root differs from dicot root in having ... .. [ RPMT 2005]
0%
a) Open vascular bundles
100%
b) Scattered vascular bundles
0%
c) Well developed pith
0%
d) Radially arranged vascular bundles
Q.18.
Sunken stomata occur in ... .. [ CBSE 2001]
0%
a) Mango
0%
b) guava
100%
c) hydrilla
0%
d) Nerium
Q.19.
Cambial cells are formed from ... [ Har PMT 2001]
0%
a) Promeristem
0%
b) Premeristem
0%
c) Parenchyma
100%
d) All the above
Q.20.
Annular and spirally thickened conducting elements generally develop in protoxylem when root or stem is ... .. [ CBSE 2009]
0%
a) Widening
100%
b) Differentiating
0%
c) Maturing
0%
d) Elongating
Q.21.
Fascicular cambium of dicot stems is ... .. [ CPMT 1990]
0%
a) Apical meristem
0%
b) Primary meristem
0%
c) Secondary meristem
100%
d) Intercalary meristem
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
100%
d) Both are correct
Q.23.
Vascular bundles of Cucurbita stem are ... .. [ CPMT 1996]
0%
a) Collateral
100%
b) Bicollateral
0%
c) Radial
0%
d) Concentric
Q.24.
In autumn and winter, cambium produces ... .. [ Odisha 2007]
0%
a) Sap wood
0%
b) Heart wood
0%
c) Early wood
100%
d) Late wood
Q.25.
Bundle sheath is absent around vascular bundles of ... .. [ JIPMER 1999]
0%
a) Dicot stem
0%
b) Monocot stem
0%
c) Dicot leaf
100%
d) Monocot leaf
Q.26.
Collenchyma produces ... .. [ BHU 1996]
0%
a) Epidermis
0%
b) Hypodermis
100%
c) Inner cortex
0%
d) Phloem
Q.27.
Phellogen is also known as ... ... [ BHU 2007]
0%
a) Vascular cambium
0%
b) Periderm
100%
c) Cork cambium
0%
d) Apical meristem
Q.28.
In roots, lateral branches grow from ... .. [ AIIMS 1999]
0%
a) Epiblema
0%
b) Pericycle
100%
c) Cortex
0%
d) Endodermis
Q.29.
Lenticels do not occur on ... ... [ RPMT 1992]
0%
a) Fruit
0%
b) Root
100%
c) Stem
0%
d) Leaf
Q.30.
Which one contains chloroplasts ... .... [ CMC 2002]
100%
a) Collenchyma and sclerenchyma
0%
b) Sclerenchyma and parenchyma
0%
c) Chlorenchyma and sclerenchyma
0%
d) Chlorenchyma and parenchyma
Q.31.
Cambium produces growth in ... .. [ RPMT 2005]
0%
a) Branches
0%
b) Girth
100%
c) Pith
0%
d) Cortex
Q.32.
Which one is responsible for radial conduction of water and food in woody stem? ... .. [ AMU 1997]
0%
a) Vessels
100%
b) Vascular rays
0%
c) Endodermis
0%
d) Xylem fibres
Q.33.
Tunica corpus theory was proposed by ... .. [ JIPMER 1999]
0%
a) Schmidth
100%
b) Nageli
0%
c) Hanstein
0%
d) Hofmeister
Q.34.
Phloem tissue of angiosperms differs from that of gymnosperms in having ... .. [ Pb PMT 1997]
0%
a) Companion cells
0%
b) Sieve cells
100%
c) Sieve plates
0%
d) None of the above
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
100%
d) Cork and secondary phloem
Q.36.
Complementary cells occur in ... .. [ WB 2012]
0%
a) Pericycle
0%
b) Pith
100%
c) Lenticels
0%
d) Endodermis
Q.37.
Vascular bundle having cambium is ... ..[ RPMT 1990]
0%
a) Open
100%
b) Closed
0%
c) Collateral
0%
d) Conjoint
Q.38.
Three radial vascular bundles are present in ... .. [ RPMT 1998]
0%
a) Monocot stem
0%
b) Monocot root
100%
c) Dicot stem
0%
d) Dicot root
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
100%
d) Root hairs absorb water and minerals
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
100%
c) Orange
0%
d) Purple
Q.41.
Tyloses occur in ... ... [ har PMT 2001]
0%
a) Autumn wood
0%
b) Spring wood
100%
c) Heart wood
0%
d) Sap wood
Q.42.
Lateral meristems are ... .. [ KCET 2010]
0%
a) Phellogen and procambium
0%
b) Procambium and dermatogen
100%
c) Fascicular cambium and procambium
0%
d) Fascicular cambium and cork cambium
Q.43.
Vascular bundles occur in a leaf ... .. [ CMC 2003]
0%
a) Entire lamina
0%
b) Palisade parenchyma
0%
c) Spongy parenchyma
100%
d) Veins and veinlets
Q.44.
A component of xylem is ... .. [ MPPMT 1999]
0%
a) Sieve tube
100%
b) Medullary ray
0%
c) Sclereids
0%
d) Tracheid
Q.45.
Procambium forms ... .. [ CBSE 1994]
0%
a) Only primary vascular bundles
0%
b) Only vascular cambium
100%
c) Only cork cambium
0%
d) Primary vascular bundles and vascular cambium
Q.46.
Major difference between phloem of angiosperms and gymnosperms is .. .. [ RPMT 2002]
0%
a) Sieve tube
100%
b) Medullary rays
0%
c) Bast fibre
0%
d) Companion cells
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
100%
b) Vascular cambium
0%
c) Endodermis
0%
d) Pericycle
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
100%
c) Outside the pith
0%
d) inside the cortex
Q.49.
A leptocentric or amphivasal vascular bundle has ... .. [ RPT 1998]
0%
a) Phloem flanked by xylem on interior and exterior sides only
100%
b) Xylem flanked by phloem on interior and exterior sides only
0%
c) Xylem surrounded by phloem
0%
d) Phloem surrounded completely by xylem
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
100%
d) Cell which are non-living at maturity
Support mcqgeeks.com by disabling your adblocker.
Please disable the adBlock and continue. Thank you.