Where do the casparian bands occur ... .. [ CBSE 1999]
0%
a) Epidermis
50%
b) Endodermis
50%
c) Pericycle
0%
d) Phloem
Q.7.
Which character is not associated with plant where Shull studied inbreeding depression while Miller and Letham extracted a hormone from its seeds ... ..
0%
a) Atactostele in stem
0%
b) Bundle sheath in leaf
100%
c) Chromosome number 30 in endosperm
0%
d) Medulla absent in root
Q.8.
The balloon like growth of parenchyma in the lumen of a vessel are known as ... .. [ BHU 1994]
0%
a) Histogen
100%
b) Tyloses
0%
c) Phellogen
0%
d) Tunica
Q.9.
The best method to determine the age of tree is to ... ..[ AFMC 1993]
0%
a) Measure its diameter
0%
b) Count the number of leaves
100%
c) Count the number of annual rings at the base of main stem
0%
d) Find out the number of branches
Q.10.
Bulliform or motor cells are present on ...
0%
a) Root
0%
b) Stem
100%
c) Isobilateral leaf
0%
d) Dorsiventral leaf
Q.11.
Outer lighter coloured/alburnum region of wood is .. ... [ JKCMEE 2008]
0%
a) Autumn wood
33%
b) Spring wood
0%
c) Heart wood
67%
d) Sapwood
Q.12.
In sieve elements, the possible function of P-proteins is ... .. [ AIIMS 2006]
0%
a) Autolytic enzymes
0%
b) Sealing mechanism on wounding
50%
c) Providing energy for active translocation
50%
d) Deposition of callose on sieve plates
Q.13.
Four radial bundles occur in ... ... [ CBSE 2002]
0%
a) Monocot root
100%
b) Dicot root
0%
c) Monocot stem
0%
d) Dicot stem
Q.14.
Histogens are components of ... ..
0%
a) Secondary phellogen
100%
b) Apical meristem
0%
c) Lateral meristem
0%
d) Intercalary meristem
Q.15.
Pith or central part of ground tissue is made of ... ..[ JKCMEE 2005]
50%
a) Collenchyma
50%
b) Parenchyma
0%
c) Chlorenchyma
0%
d) Sclerenchyma
Q.16.
Pith is produced by ... .. [ AFMC 1993]
100%
a) Ground meristem
0%
b) Procambium
0%
c) Periblem
0%
d) Dermatogen
Q.17.
Which one is living and non-nucleated at maturity? ... .. [ AMU 1995]
50%
a) Sieve tubes
50%
b) Companion cells
0%
c) Collenchyma
0%
d) Parenchyma
Q.18.
Knot in the wood are formed by ... ..[ Bih. PMT 2002]
50%
a) Insect injury
50%
b) Growth of secondary tissues over wounds of fallen branches
0%
c) bacterial tumours
0%
d) None of these
Q.19.
Senescence is an active developmental cellular process in the growth and functioning of flowering plant, is indicated in ... .. [ CBSE 2008]
0%
a) Annual plants
0%
b) Floral parts
50%
c) Leaf abscission
50%
d) Vessels and tracheids
Q.20.
Length of petiole increases by the activity of .. .. [ CPMT 2007]
0%
a) Apical meristem
0%
b) Lateral meristem
100%
c) Intercalary meristem
0%
d) All the above
Q.21.
Which is not true of dicot root ... ..[ CPMT 1990]
100%
a) Vascular bundles 15-20
0%
b) Radial vascular bundles
0%
c) Secondary growth
0%
d) Pith little or absent
Q.22.
Sugarcane plant has ... .... [ AIIMS 2004]
0%
a) Recticulate venation
0%
b) Capsular fruits
0%
c) Pentamerous flowers
100%
d) Dumb-bell-shaped guard cells
Q.23.
Simple pits occur in ... .. [ Manipal 1997]
50%
a) Parenchyma alone
0%
b) Simple tissue alone
50%
c) Parenchyma and sclerenchyma
0%
d) All types of tissues
Q.24.
Correct sequence of layers from outside to inside of a typical monocot root is ... .. [ CPMT 2005]
0%
a) Epiblema, endodermis, cortex, pericycle
0%
b) Pericycle, cortex, endodermis, epiblema
0%
c) Epiblema, cortex, endodermis, pericycle
100%
d) Epiblema, pericycle, cortex, endodermis
Q.25.
Casparian strip contain ... .. [ RPMT 1998]
0%
a) Cutin
0%
b) Pectin
100%
c) Suberin
0%
d) Wax
Q.26.
A dicot in which stem has scattered vascular bundles is ... ... [ JKCET 2012]
50%
a) Helianthus
0%
b) Pepromia
50%
c) Yucca
0%
d) Dolichos
Q.27.
Latex vessel occur in ... .. [ BHU 1990]
0%
a) Calotropis
0%
b) Banana
100%
c) Papaver/Poppy
0%
d) Euphorbia
Q.28.
Growth/annul rings are formed by the activity of ... .. [ AFMC 1990]
100%
a) Cambium
0%
b) Xylem
0%
c) Phloem
0%
d) Both xylem and phloem
Q.29.
In ferns vascular bundle is ... ..
0%
a) Leptocentric
0%
b) Amphicribal/amphiphloic
100%
c) Amphivasal
0%
d) Collateral
Q.30.
Which one consists of living cells ... ... [ MPPMT 2009]
0%
a) Vessels
0%
b) Tracheids
100%
c) Companion cells
0%
d) Sclerenchyma
Q.31.
In monocots ... .. [ CPMT 2010]
50%
a) Leaves have reticulate venation
0%
b) Stems have annual rings
0%
c) Seeds have two storage organs
50%
d) Stems have scattered conducting strands
Q.32.
As the secondary growth takes place (proceeds) in tree, thickness of .... .... [ CBSE 1994]
50%
a) Heart wood increases
0%
b) Sap-wood increases
50%
c) Both increase
0%
d) Both remain the same
Q.33.
Aerenchyma occurs in ... .. [ MPPMT 2004]
0%
a) Mesophytes
50%
b) Xerophytes
50%
c) Hydrophytes
0%
d) Sciophytes
Q.34.
Palisade parenchyma is absent in leaves of ... ..[ CBSE 2009]
50%
a) Gram
0%
b) Soybean
50%
c) Sorghum
0%
d) Mustard
Q.35.
Mesarch xylem occurs in ... [ Pb PMT 1999]
50%
a) Monocots
0%
b) Dicots
50%
c) Ferns
0%
d) Bryophytes
Q.36.
Match the species with type of wood ... [ JKCMEE 2003] a) Tectona grandis b) Cedrus deodara c) Shorea robusta d) Dalbergia sissoo e) Softwood f) Hardwood
0%
a) a - e, b - f, c - f, d - e
0%
b) a - e , b - e, c - f, d - f
100%
c) a - f, b - e, c - f, d - f
0%
d) a - f, b - e, c - e, d- f
Q.37.
Central xylem is present in ... ... [ Manipal 2003]
50%
a) Dicot root
50%
b) Dicot stem
0%
c) Monocot stem
0%
d) Branches of stem
Q.38.
Exchange of gases between air and the internal tissues of older corky stems takes place through .. ... [ HPPMT 2012]
0%
a) Sieve plates
0%
b) Pits
50%
c) Stomata
50%
d) Lenticels
Q.39.
Small, thin walled elongated cells associated with sieve tube elements are ... .. [ Tamil nadu 2001]
50%
a) Sieve plates
50%
b) Companion cells
0%
c) Phloem fibres
0%
d) Phloem parenchyma cells
Q.40.
Which of the following is /are not true .. ..[ kerala 2006 ] a. Cork cambium is otherwise called phellogen b. Cork is otherwise called phellem c. Secondary cortex is otherwise called periderm d. Cork cambium, cork and secondary cortex are collectively called phelloderm
0%
a) b and d only
0%
b) b and c only
0%
c) c and d only
100%
d) a and b only
Q.41.
A simple tissue with both mechanical and physiological functions in young dicotyledonous plant is .. .. [ EAMCET 2002]
100%
a) Meristematic tissue
0%
b) Parenchyma
0%
c) Sclerenchyma
0%
d) Collenchyma
Q.42.
In dicot system, xylem is ... .. [ AFMC 1993]
0%
a) Polyarch
0%
b) Monoarch
50%
c) Endarch
50%
d) Exarch
Q.43.
Dividing cells not yet committed to become specific cell type are ... .. [ COMED-K's 2008]
0%
a) Epidermal cells
0%
b) Ground cells
0%
c) Periderm cells
100%
d) Meristem cells
Q.44.
Which is wrong about sieve tube elements ... .. [ kerala 2007]
0%
a) Peripheral cytoplasm and large vacuole
0%
b) Perforated end wall becomes impregnated with lignin
100%
c) P-proteins occurs evenly distributed throughout lumen
0%
d) Absence of nucleus at maturity
Q.45.
Endodermis takes part in ... .. [ CPMT 2007]
50%
a) Providing protection
0%
b) Preventing water loss from stele
0%
c) Maintaining rigidity
50%
d) All the above
Q.46.
Diffuse porous woods are characteristics of plants growing in ... ... [ CBSE 2003]
0%
a) Alpine regions
0%
b) Cold winter regions
0%
c) Temperate regions
100%
d) Tropical regions
Q.47.
Collenchyma occur in ... .. [ CBSE 1990]
0%
a) Herbaceous climbers
0%
b) Woody climbers
100%
c) Climbing stems
0%
d) Water plants
Q.48.
Root cap regenerates/dead torn cells of root cap are replaced by the activity of ... .. [ RPMT 1995]
50%
a) Plerome
50%
b) Dermatogen
0%
c) Calyptrogen
0%
d) Periblem
Q.49.
A bicollateral vascular bundle is characterised by ... .. [ CBSE 1992]
0%
a) Phloem being sandwiched between xylem
0%
b) Transverse splitting of vascular bundle
0%
c) Longitudinal slitting of vascular bundle
100%
d) Xylem being sandwiched between phloem
Q.50.
Palisade parenchyma is present on both sides in ... ..[ RPMT 2005]
0%
a) Nerium
0%
b) Eucalyptus
0%
c) Wheat
100%
d) both a and b
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