2013
Q51
NEET
MCQ
10 Mar 2026
Lenticels are involved in
A.
Food transport
B.
Photosynthesis
C.
Transpiration
D.
Gaseous exchange
2013
Q52
NEET
MCQ
10 Mar 2026
Age of a tree can be estimated by :
A.
Diameter of its heartwood
B.
Number of annual rings
C.
Its height and girth
D.
Biomass
2012
Q53
NEET
MCQ
10 Mar 2026
As compared to a dicot root, a monocot root has
A.
More abundant secondary xylem
B.
Relatively thicker periderm
C.
Many xylem bundles
D.
Inconspicuous annual rings
2012
Q54
NEET
MCQ
10 Mar 2026
Closed vascular bundles lack
A.
Ground tissue
B.
Conjunctive tissue
C.
Cambium
D.
Pith
2012
Q55
NEET
MCQ
10 Mar 2026
Gymnosperms are also called soft wood spermatophytes because they lack
A.
Cambium
B.
Thick - walled tracheids
C.
Phloem fibres
D.
Xylem fibres
2012
Q56
NEET
MCQ
10 Mar 2026
Companion cells are closely associated with
A.
Sieve elements
B.
Trichomes
C.
Vessel elements
D.
Guard cells
2012
Q57
NEET
MCQ
10 Mar 2026
Water containing cavities in vascular bundles are found in
A.
Maize
B.
Cycas
C.
Sunflower
D.
Pinus
2012
Q58
NEET
MCQ
10 Mar 2026
The common bottle cork is a product of
A.
Phellogen
B.
Xylem
C.
Vascular Cambium
D.
Dermatogen
2011
Q59
NEET
MCQ
10 Mar 2026
Some vascular bundles are described as open
because these :
A.
are capable of producing secondary xylem
and phloem
B.
are not surrounded by pericycle
C.
possess conjunctive tissue between xylem
and phloem
D.
are surrounded by pericycle but no
endodermis
2011
Q60
NEET
MCQ
10 Mar 2026
Function of companion cells is :
A.
Providing water to phloem
B.
Loading of sucrose into sieve elements
C.
Loading of sucrose into sieve elements by
passive transport
D.
Providing energy to sieve elements for active
transport
2011
Q61
NEET
MCQ
10 Mar 2026
Ground tissue includes :
A.
All tissues external to endodermis
B.
Epidermis and cortex
C.
All tissues internal to endodermis
D.
All tissues except epidermis and vascular
bundles
2011
Q62
NEET
MCQ
10 Mar 2026
The cork cambium, cork and secondary cortex
are collectively called :
A.
Periderm
B.
Phellem
C.
Phellogen
D.
Phelloderm
2010
Q63
NEET
MCQ
10 Mar 2026
Transport of food material in higher plants takes
place through -
A.
Sieve elements
B.
Transfusion tissue
C.
Companion cells
D.
Tracheids
2010
Q64
NEET
MCQ
10 Mar 2026
Heartwood differs from sapwood in –
A.
Having dead and non-conducting elements
B.
Being susceptible to pests and pathogens
C.
Presence of rays and fibres
D.
Abscence of vessels and parenchyma
2010
Q65
NEET
MCQ
10 Mar 2026
Which one of the folliwng is not a lateral
meristem ?
A.
Interfascicular cambium
B.
Intercalary meristem
C.
Intrafascicular cambium
D.
Phellogen
2010
Q66
NEET
MCQ
10 Mar 2026
The chief water conducting elements of xylem
in gymnosperms are :
A.
Fibres
B.
Transfusion tissue
C.
Vessels
D.
Tracheids
2009
Q67
NEET
MCQ
10 Mar 2026
In barley stem vascular bundles are -
A.
Closed and scattered
B.
Closed and radial
C.
Open and in a ring
D.
Open and scattered
2009
Q68
NEET
MCQ
10 Mar 2026
Palisade parenchyma is absent in leaves of -
A.
Mustard
B.
Sorghum
C.
Soybean
D.
Gram
2009
Q69
NEET
MCQ
10 Mar 2026
The annular and spirally thickened conducting
elements generally develop in the protoxylem
when the root or stem is -
A.
Maturing
B.
Widening
C.
Elongating
D.
Differentiating
2009
Q70
NEET
MCQ
10 Mar 2026
Anatomically fairly old dicotyledonous root is
distinguished from the dicotyledonous stem by :
A.
Absence of secondary phloem
B.
Presence of cortex
C.
Position of protoxylem
D.
Absence of secondary xylem
2008
Q71
NEET
MCQ
10 Mar 2026
Vascular tissues in flowering plants develop
from:
A.
plerome
B.
periblem
C.
phellogen
D.
dermatogen
2008
Q72
NEET
MCQ
10 Mar 2026
The length of different internodes in a culm of
sugarcane is variable because of:
A.
shoot apical meristem
B.
position of axillary buds
C.
size of leaf lamina at the node below each
internode
D.
intercalary meristem
2007
Q73
NEET
MCQ
10 Mar 2026
Passage cells are thin-walled cells found in:-
A.
Endodermis of roots facilitating rapid
transport of water from cortex to pericycle
B.
Testa of seeds to enable emergence of
growing embryonic axis during seed
germination.
C.
Phloem elements that serve as entry points
for substances for transport to other plant
parts
D.
Central region of style through which the
pollen tube grows towards the ovary.
2007
Q74
NEET
MCQ
10 Mar 2026
For a critical study of secondary growth in plants,
which one of the following pairs is suitable ?
A.
Deodar and fern
B.
Wheat and maiden hair fern
C.
Sugarcane and sunflower
D.
Teak and pine
2006
Q75
NEET
MCQ
10 Mar 2026
A common structural feature of vessel elements
and sieve tube elements is-
A.
Enucleate condition
B.
Presence of p-protein
C.
Thick secondary walls
D.
Pores on lateral wall
2005
Q76
NEET
MCQ
10 Mar 2026
In a woody dicotyledonous tree, which of the
following parts will mainly consist of primary
tissues ?
A.
Shoot tips and root tips
B.
Flowers, fruit and leaves
C.
Stem and root
D.
All parts
2004
Q77
NEET
MCQ
10 Mar 2026
In a longitudinal section of a root, starting from
the tip upward, the four zones occur in the
following order :-
A.
Cell division, cell enlargement, cell
maturation, root cap
B.
Root cap, cell division, cell enlargement, cell
maturation
C.
Root cap, cell division, cell maturation, cell
enlargement
D.
Celldivision,cell maturation, cell enlargement,
root cap
2003
Q78
NEET
MCQ
10 Mar 2026
The apical meristem of the root is present
A.
In all the roots
B.
Only in tap roots
C.
Only in adventitious roots
D.
Only in radicals
2003
Q79
NEET
MCQ
10 Mar 2026
Diffuse porous wood is characteristics of those
plants which are growing in : -
A.
Tropics
B.
Temperate climate
C.
Alpine region
D.
Cold winter regions
2003
Q80
NEET
MCQ
10 Mar 2026
The cells of the quiescent centre are characterised
by : -
A.
Having light cytoplasm and small nuclei
B.
Dividing regularly to add to tunica
C.
Having dense cytoplasm and prominent
nuclei
D.
Dividing regularly to add to the corpus
2003
Q81
NEET
MCQ
10 Mar 2026
Chlorenchyma is known to develop in the : -
A.
Mycelium of a green mould such as
Aspergillus
B.
Pollen tube of Pinus
C.
Cytoplasm of Chlorella
D.
Spore capsule of a moss
2003
Q82
NEET
MCQ
10 Mar 2026
In which one of the following nitrogen is not a
constituent ?
A.
Pepsin
B.
Invertase
C.
Idioblast
D.
Bacteriochlorophyll
2003
Q83
NEET
MCQ
10 Mar 2026
The aleurone layer in maize grain is specially
rich in :-
A.
Lipids
B.
Proteins
C.
Auxins
D.
Starch
2002
Q84
NEET
MCQ
10 Mar 2026
Vessels are found in : -
A.
Most of the angiosperm and few
gymnosperms
B.
All angiosperms and some gymnosperm
C.
All pteridophyta
D.
All angiosperms, all gymnosperms and some
pteridophyta
2002
Q85
NEET
MCQ
10 Mar 2026
Four radial vascular bundle are found in : -
A.
Monocot stem
B.
Dicot stem
C.
Dicot root
D.
Monocot root
2002
Q86
NEET
MCQ
10 Mar 2026
Axillary bud and terminal bud derived from the
activity of : -
A.
Apical meristem
B.
Parenchyma
C.
Lateral meristem
D.
Intercalary meristem
2002
Q87
NEET
MCQ
10 Mar 2026
Which of the following statement is true ?
A.
Tracheids are unicellular and with wide
lumen
B.
Tracheids are multicellular and with narrow
lumen
C.
Vessels are multicellular and with wide
lumen
D.
Vessels are unicellular and with narrow
lumen
2001
Q88
NEET
MCQ
10 Mar 2026
In plants inulin and pectin are
A.
Excretory material
B.
Reserved material
C.
Insect attracting material
D.
Wastes
2000
Q89
NEET
MCQ
10 Mar 2026
What happens in plants during vascularisation ?
A.
Formation of procambium, primary phloem
and xylem simultaneousl
B.
Differentiation of procambium followed by
the formation of secondary xylem
C.
Differentiation of procambium, formation
of primary phloem followed by formation
of primary xylem
D.
Differentiation of procambium followed by
the formation of primary phloem and
xylem simultaneously