Cells of quiescent centre are characterised by ... ... [ CBSE 2003]
50%
a) Dense cytoplasm and prominent nuclei
25%
b) Light cytoplasm and small nuclei
25%
c) Dividing regularly to add to the corpus
0%
d) Dividing regularly to ass to tunica
Q.2.
The term parenchyma was coined by ... .. [ Manipal 2005]
0%
a) Hook
75%
b) Schleiden
25%
c) Grew
0%
d) Mettenius
Q.3.
Which is enucleate at maturity? ... .. [ CBSE 1997]
33%
a) Sieve cell
33%
b) Companion cell
33%
c) Cortical cell
0%
d) Palisade cell
Q.4.
Passage cells occur in ... ... [ AIIMS 2002]
0%
a) Monocot root
67%
b) Dicot root
0%
c) Monocot stem
33%
d) Aerial root
Q.5.
Cells taking part in conduction of sap are ... .... [ kerala 2000 ]
33%
a) Sieve tubes
67%
b) Tracheae
0%
c) Sieve cells
0%
d) Stone cells
Q.6.
A cut trunk shows 26 concentric rings of spring wood and autumn wood in alternate rows. the age of trunk would be .. ..[ HPPMT 2012]
0%
a) 13 years
67%
b) 26 years
33%
c) 52 years
0%
d) 104 years
Q.7.
A narrow thin walled cell with large nucleus and lying on the side of sieve tube is absent in ... ... [ BHU 1993 ]
0%
a) Angiosperms
0%
b) Pteridophytes
0%
c) Gymnosperms
100%
d) Both b and c
Q.8.
Pericycle of roots produces ... ... [ CBSE 1990]
0%
a) Mechanical support
50%
b) Lateral roots
50%
c) Vascular bundles
0%
d) Adventitious buds
Q.9.
The grittiness of pulp of Wood Apple is due to ... ..
0%
a) Macrosclereids
50%
b) Brachysclereids
50%
c) Osteosclereids
0%
d) Astrosclereids
Q.10.
Assertion a: Apical and intercalary meristems contribute to the growth in length while the lateral meristems bring increase in girth in Maze Reason r: Apical and intercalary meristems always increase the height of plants
0%
a) Both a and s are true with r being correct explanation of a
50%
b) both a and r are true but r is not the correct explanation of a
50%
c) a is true but r is false
0%
d) a is false but r is true
Q.11.
Velamen takes part in ... ... [ BHU 1992]
0%
a) Respiration
0%
b) Absorption of moisture
50%
c) Transpiration
50%
d) Protection
Q.12.
Concept envisaging three zones of cells in root and stem apices is ... .. [ BHU 1997]
0%
a) Histogen theory
100%
b) Tunica corpus theory
0%
c) Meristem theory
0%
d) Dermatogen theory
Q.13.
Choose the correct options (a) Thread like cytoplasmic strands, running from one cell to other are known as plasmodesmata (b) Xylem and phloem constitute the vascular bundle of the stem (c) First formed xylem elements are described as metaxylem (d) Radial bundles are mainly found in leaves ... ... [ kerala 2009]
0%
a) a, b true c,d wrong
0%
b) d true a, b, c wrong
0%
c) c true a, b, d wrong
100%
d) b true, a, c, d wrong
Q.14.
Numerous vascular bundles occur scattered in the ground tissue of ... ... [ Odisha 2003]
0%
a) Monocot stem
0%
b) Monocot root
0%
c) Dicot stem
0%
d) Dicot root
Q.15.
Kranz anatomy is found in case of ... .. [ CPMT 1993]
0%
a) Flower
0%
b) Root
0%
c) Leaf
0%
d) Stem
Q.16.
Which exposed wood will decay faster ... .. [ CBSE 1993]
0%
a) Sapwood
0%
b) Softwood
0%
c) Wood with lot of fibres
0%
d) Heartwood
Q.17.
Wrong statement about angiosperm roots is ... ... [ KCET 2012]
0%
a) Apex is protected by root cap
0%
b) Vascular bundles are collateral
0%
c) Xylem is centripetal in young state
0%
d) Cuticle is absent in young state
Q.18.
Angular collenchyma occurs in ... .. [ CBSE 1991]
0%
a) Cucurbita
0%
b) Helianthus
0%
c) Althaea
0%
d) Savia
Q.19.
Which part of Cinchona plant, a drug is obtained ... .. [ MPPMT 1995]
0%
a) Bark
0%
b) Pericarp
0%
c) Leaf
0%
d) Endosperm
Q.20.
Will developed pith is found in ... [ KCET 2008]
0%
a) Monocot root and monocot stem
0%
b) Monocot stem and dicot root
0%
c) Monocot root and dicot stem
0%
d) Dicot root and dicot stem
Q.21.
Intercalary meristem is found in ... ... [ JKCMEE 2004]
0%
a) Mint
0%
b) Grasses
0%
c) None of the above
0%
d) Both a and b
Q.22.
Which is least differentiated? ... .. [ Manipal 2005]
0%
a) Simple tissues
0%
b) Parenchyma
0%
c) Circulatory tissues
0%
d) Complex tissues
Q.23.
Cambium is most active in ... ... [ AFMC 2003 ]
0%
a) Summer
0%
b) Winter
0%
c) All seasons
0%
d) Snow areas
Q.24.
Callose can occur in ... ... [ AMU 1992]
0%
a) Phloem parenchyma
0%
b) Companion cells
0%
c) Sieve tube
0%
d) Tracheids
Q.25.
Closing layers of lenticels show deposition of ... ..
0%
a) Cutin
0%
b) Lignin
0%
c) Pectin
0%
d) Suberin
Q.26.
Parenchymatous tissue is characterised by the presence of ... .. [ JIPMER 2002]
0%
a) Thickenings at corners
0%
b) Lignified walls
0%
c) Uniform thickness
0%
d) Intercellular spaces
Q.27.
Lateral meristems are responsible for growth of ... .. [ BHU 1991]
0%
a) Cortex
0%
b) Parenchyma
0%
c) Thickness
0%
d) Length
Q.28.
Bulliform or motor cells occur in ... ... [ BHU 1999]
0%
a) Upper epidermis of dicot leaves
0%
b) Upper epidermis of monocot leaves
0%
c) Lower epidermis of monocot leaves
0%
d) Lower epidermis of dicot leaves
Q.29.
Which group possesses vessels in its xylem ... [ AFMC 1996]
0%
a) Pteridophytes
0%
b) Angiosperms
0%
c) Gymnosperms
0%
d) Both b and c
Q.30.
Sieve tube cell is ... ... [ KCET 1999]
0%
a) Nucleated
0%
b) Multinucleated
0%
c) Enucleate
0%
d) Dead
Q.31.
Conducting component of xylem are ... ..[ Har PMT 2002]
0%
a) Sieve elements
0%
b) Companion elements
0%
c) Tracheary elements
0%
d) All the above
Q.32.
Monocot stem has ... ... [ BHU 2002]
0%
a) Bicollateral closed vascular bundles
0%
b) Bicollateral open vascular bundles
0%
c) Collateral open vascular bundles
0%
d) Collateral closed vascular bundles
Q.33.
Endodermis is part of ... .. [ B.V. 2006]
0%
a) Medulla
0%
b) Stele
0%
c) Cortex
0%
d) Exodermis
Q.34.
According to histogen theory, epidermis is formed by ... .. [ MPPMT 1996]
0%
a) Dermatogen
0%
b) Protoderm
0%
c) Periblem
0%
d) Plerome
Q.35.
Assertion: Vascular cambium is considered as lateral meristem Reason: It gives rise to lateral shoots ... ... [ AIIMS 2000 ]
0%
a) If both the assertion and reason are true and reason explains the assertion
0%
b) If both the assertion and reason are true but reason does not explain the assertion.
0%
c) If assertion is true but reason is false
0%
d) If assertion is false but reason is true.
Q.36.
A.T.S. of dicot stem shows ... ..[ CPMT 1996]
0%
a) Vascular bundles arranged in a ring
0%
b) Scattered vascular bundles
0%
c) Closed vascular bundles
0%
d) Radial vascular bundles
Q.37.
Complex/special tissue is ... .. [ MPPMT 1993]
0%
a) Sclereid
0%
b) Sclerenchyma
0%
c) Collenchyma
0%
d) Secretory tissue
Q.38.
Polyarch and exarch condition is found in ... .. [ JIPMER 2004]
0%
a) Monocot stem
0%
b) Monocot root
0%
c) Dicot stem
0%
d) Dicot root
Q.39.
Compare the statement a and b Statement a: Sclerenchyma cells do not have plasmodesmata Statement b: Cell walls of some permanent tissues are heavily lignified .... [ kCET 2010]
0%
a) Statement a is correct and b is wrong
0%
b) Both the Statements a and b wrong
0%
c) Both the Statements a and b are correct
0%
d) Statement a is wrong and b is correct
Q.40.
Vascular bundles in dicot root are ... .. [ Bihar PMT 1995]
0%
a) Radial exarch
0%
b) Conjoint
0%
c) Radial endarch
0%
d) Conjoint exarch
Q.41.
Commercial cork is obtained from .. .. [ BHU 2012]
0%
a) Berberis/Barberry
0%
b) Salix/Willow
0%
c) Quercus/Oak
0%
d) Betula/Birch
Q.42.
Monocot/grass leaves grow by ... .. [ AMU 2002]
0%
a) Lateral meristem
0%
b) Intercalary meristem
0%
c) Apical meristem
0%
d) Secondary meristem
Q.43.
Anatomically Jute fibres are ... .. [ BHU 1996]
0%
a) Xylem fibres
0%
b) Cortical fibres
0%
c) Pith fibres
0%
d) Secondary bast/ Phloem fibres
Q.44.
Secondary growth is best observed in ... ... [ CBSE 2007]
0%
a) Teak and Pine
0%
b) Deodar and Fern
0%
c) Wheat and Maiden Hair Fern
0%
d) Sugarcane and Sunflower
Q.45.
Assertion: The quiescent centre acts as a reservoir of cells which constitute a permanent source of active initials Reason: Cells of inactive region of quiescent centre become active when the previously active initials get damaged ... .. [ AIIMS 2007]
0%
a) If both the assertion and reason are true and reason explains the assertion
0%
b) If both the assertion and reason are true but reason does not explain the assertion.
0%
c) If assertion is true but reason is false
0%
d) If assertion is false but reason is true.
Q.46.
What is correct sequence ... .. [ JIPMER 2003]
0%
a) Xylem - cambium - medulla
0%
b) Cortex - endodermis - pericycle - xylem
0%
c) Cambium - xylem - cortex
0%
d) None of the above
Q.47.
When phloem is completely surrounded by xylem, the vascular bundle is called ... .. [ AMU 1999]
0%
a) Concentric leptocentric/amphivasal
0%
b) Concentric hadrocentric/amphicribal
0%
c) Conjoint collateral
0%
d) Conjoint bicollateral
Q.48.
Grass stem elongates after initial growth due to ... ..
0%
a) Lateral meristem
0%
b) Secondary meristem
0%
c) Intercalary meristem
0%
d) Apical meristem
Q.49.
Which one is/ are not true ... .. [ kerala 2007 a) Cork cambium is called phellogen b) Cork is called phellem c) Secondary cortex is called periderm d) Cork cambium, cork and secondary cortex are collectively called phelloderm
0%
a) c and d only
0%
b) a and b only
0%
c) b nad c only
0%
d) b and d only
Q.50.
Passage cells occur in ... .. [ KCET 2000 ]
0%
a) Epidermis
0%
b) Cortex
0%
c) Endodermis
0%
d) Pericycle
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