Parenchyma
Collenchyma
Sclerenchyma
Xylem parenchyma
B. Collenchyma
A Epidermis, B Hypodermis, C Vascular bundles, D Phloem, E Xylem, F Ground tissue
A Cuticle, B Epidermis, C Sclerenchymatous sheath, D Sclerenchymatous hypodermis, E Parenchymatous sheath, F Phloem
A Cuticle, B Epidermis, C Sclerenchymatous hypodermis, D Sclerenchymatous sheath, E Parenchymatous sheath, F Phloem
A Cuticle, B Epidermis, C Sclerenchymatous hypodermis, D Sclerenchymatous sheath, E Parenchymatous sheath, F Protoxylem
soil is sandy.
there is climatic variation.
there is no marked climatic variation.
there is enough moisture in the atmosphere.
A. Spring wood or | I. Lighter in colour early wood |
---|---|
B. Autumn wood or | II. High density late wood |
.. | III. Low density |
.. | IV. Darker in colour |
.. | V. Larger number of xylem elements |
.. | VI. Vessels with wider cavity |
.. | VII. Lesser number of xylem elements |
.. | VIII. Vessels with small cavity |
A II, IV, VII, VIII; B I, III, V, VI
A I, II, VII, VIII; B III, IV, V, VI
A I, III, V, VI; B II, IV, VII, VIII
A I, III, VII, VIII; B II, IV, V, VI
In dicots vascular bundles are arranged in a ring.
Dicots have cambium for secondary growth.
In dicots vessels with elements are arranged end to end.
Cork cambium is present in dicots
roots, stems, leaves
stems, roots, leaves
leaves, stems, roots
leaves, stems, leaves
Column-I | Column-II |
---|---|
A. Xylem vessels | I. Store food materials |
B. Xylem tracheids | II. Obliterated lumen |
C. Xylem fibres | III. Perforated plates |
D. Xylem parenchyma | IV. Chisel-like ends |
A IV; B III; C II; D I
A III; B II; C I; D IV
A II; B I; C IV; D III
A III; B IV; C II; D I
endarch
exarch
radial
closed
are surrounded by pericycle but not endodermis.
are capable of producing secondary xylem and phloem.
possess conjunctive tissue between xylem and phloem.
are not surrounded by pericycle.
cambium
phloem fibres
thick-walled tracheids
xylem fibres
cork cambium
vascular cambium
endodermis
both (a) & (c)
A Epidermis, B Spongy mesophyll, C Palisade mesophyll, D Stomata, E Guard cells, F Phloem, G Metaxylem, H Protoxylem
A Epidermis, B Palisade mesophyll, C Spongy mesophyll, D Sub-stomatal cavity, E Stoma, F Phloem, G Xylem, H Bundle sheath
A Epidermis, B Palisade mesophyll, C Spongy mesophyll, D Stomata, E Guard cells, F Epidermis, G Xylem, H Phloem
A Epidermis, C Palisade mesophyll, C Spongy mesophyll, D Stomata, E Guard cells, F Phloem, G Metaxylem, H Protoxylem
Column-I | Column-II |
---|---|
A. Stele | I. Innermost layer of cortex |
B. Endodermis | II. Suberin |
C. Casparian strips | III. All the tissues exterior to vascular cambium |
D. Bark | IV. All the tissues inner to endodermis |
A IV, B I, C II, D III
A III, B II, C I, D IV
A I, B II, C III, D IV
A IV, B II, C I, D III
A Tracheid, B Vessel, C Xylem
A Vessel, B Tracheild, C Phloem
A Fibre, B Tracheid, C Bark
A Fibre, B Sclereid, C Casparian strips
pores on lateral walls.
presence of p-protein.
enucleate condition.
thick secondary walls.
cytoskeleton.
mitochondria.
endoplasmic reticulum.
chloroplasts.
A
B
C
None of the above
Column-I | Column-II |
---|---|
(Term) | (Functions) |
A. Meristem | I. Photosynthesis, storage |
B. Parenchyma | II. Mechanical support |
C. Collenchyma | III. Actively dividing cells |
D. Sclerenchyma | IV. Stomata |
E. Epidermal tissue | V. Sclereids |
A I, B III, C V, D II, E IV
A III, B I, C II, D V, E IV
A II, B IV, C V, D I, E III
A V, B IV, C III, D II, E I
cork and cork cambium,
cork cambium and cork,
secondary cortex and cork,
cork and secondary cortex,
teak
mango
pine
palm
sclerenchymatous
chlorenchymatous
parenchymatous
aerenchymatous
Lenticels occur in most woody trees.
Sclerenchymatous cells are usually present in cortex.
The vascular tissue system is divided into three main zones- cortex, pericycle and pith.
The conjoint vascular bundles usually have the xylem located only on the outer side of the phloem.
functionally.
only structurally.
both structurally and functionally.
for mitosis.
it gives rise to lateral branches.
it causes increase in girth.
it increases height and diameter of a plant.
it adds bulk to a plant.
show alternate rings of xylem and sclerenchyma.
have only conjunctive tissue and phloem is formed by the activity of cambium.
show distinct annual rings.
not show distinct annual rings.
transpiration
guttation
gaseous exchange
both (a) & (c)
A Vascular structure, B Protoderm, C Root cap
A Cortex, B Endodermis, C Root cap
A Cortex, B Protoderm, C Root cap
A Tunica, B Protoderm, C Root cap
bordered pits.
no ends walls.
broader lumen and perforated cross walls.
no protoplasm.
Apical meristems
Lateral meristems
Secondary meristems
Intercalary meristems
similar in origin, but dissimilar in form and function.
dissimilar in origin, form and function.
dissimilar in origin, but similar in form and function.
similar in origin, form and function.