pores on lateral walls.
presence of p-protein.
enucleate condition.
thick secondary walls.
C. enucleate condition.
cork cambium
vascular cambium
endodermis
both (a) & (c)
simple pits on their radial walls.
bordered pits on their lateral walls.
simple and bordered pits on their end walls.
simple perforation on their end walls.
(iii) and (iv)
(i) and (ii)
(ii) and (iii)
(ii) and (iv)
soil is sandy.
there is climatic variation.
there is no marked climatic variation.
there is enough moisture in the atmosphere.
the parts of secondary xylem and phloem.
the parts of pericycle.
lateral meristems.
apical meristems.
transpiration
guttation
gaseous exchange
both (a) & (c)
Column-I | Column-II |
---|---|
A. Cuticle | I. Guard cells |
B. Bulliform cells | II. Outer layer |
C. Stomata | III. Waxy layer |
D. Epidermis | IV. Empty colourless cell |
A III, B IV, C I, D II
A I, B II, C III, D IV
A III, B II, C IV, D I
A III, B II, C I, D IV
(i) and (iii)
(i) and (ii)
(iii) and (iv)
(i) and (iv)
sclerenchymatous
chlorenchymatous
parenchymatous
aerenchymatous
Only (i)
Only (iv)
Only (iii)
Only (v)
whether the cells being able to divide or not.
position of the cells.
whether they are living or dead.
none of the above
Angiosperms
Gymnosperms
Pteridophytes
Bryophytes
A Epidermal cells; B Subsidiary cells; C chloroplast
A Guard cells; B Subsidiary cells; C Stomatal pore
A Guard cells; B Epidermal cells; C Guard cells
A Epidermal cells; B Subsidiary cells; C Guard cells
A Primary phloem, B Vascular cambium, C Secondary phloem, D Primary xylem
A Secondary phloem, B Vascular cambium, C Primary phloem, D Primary xylem
A Primary phloem, B Primary xylem, C Secondary phloem, D Vascular cambium
A Secondary phloem, B Primary xylem, C Primary phloem, D Vascular cambium
Radial; Conjoint closed; Conjoint open
Conjoint closed; Conjoint open; Radial
Conjoint open; Conjoint closed; Radial
Bicollateral; Concentric; Radial
Column-I | Column-II |
---|---|
A. Lateral meristem | (i) Fascicular vascular cambium, interfascicular cambium and cork cambium. |
B. Apical meristem | (ii) Produces dermal tissue, ground tissues and vascular tissue. |
C. Bast fibres | (iii) Generally absent in primary phloem but found in secondary phloem. |
D. Sap wood | (iv) Involved in the conduction of water and minerals from the root to leaf. |
A - (i), B - (ii), C - (iii), D - (iv)
A - (iii), B - (i), C - (ii), D - (iv)
A - (i), B - (iv), C - (iii), D - (ii)
A - (ii), B - (iv), C - (iii), D - (i)
roots, stems, leaves
stems, roots, leaves
leaves, stems, roots
leaves, stems, leaves
Sap wood
Heart wood
Spring wood
Autumn wood
Where companion cells helps in maintaining the pressure gradient in the sieve tubes.
Where plants absorb water through the roots and then give off water vapor through pores in their leaves.
Where activity of cork cambium builds pressure on the remaining layers peripheral to phellogen and ultimately these layers dies and slough off.
None of the above
sapwood increases.
heartwood increase.
both sapwood and heartwood increases.
both sapwood and heartwood remains the same.
A Epidermis, B Epidermal hair, C Parenchyma, D Starch sheath, E Hypodermis (collenchyma), F Vascular bundle, G Bundle cap, H Medulla or pith, I Medullary rays
A Epidermal hair, B Epidermis, C Hypodermis (collenchyma), D Parenchyma, E Endoderm is (Starch Sheath), F Pericycle, G Vascular bundle, H Medullary rays, I Medulla or pith
A Epidermal hair, B Epidermis, C Hypodermis (collenchyma), D Starch sheath, E Parenchyma, F Vascular bundle, G Bundle cap, H Medulla or pith, I Medullary rays
A Epidermal hair, B Epidermis, C Parenchyma, D Hypodermis (collenchyma), E Starch sheath, F Vascular bundle, G Bundle cap, H Medulla or pith, I Medullary rays
conjoint, collateral, open polyarch vascular bundle.
exodermis, endarch, tetrarch closed vascular bundles.
suberized exodermis, casparian strip, passage cells, cambium.
suberized exodermis, polyarch xylem, pith.
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.
A Epidermis, B Secondary cortex, C Cork cambium, D Cork
A Pore, B Cork cambium, C Secondary cortex, D Cork
A Pore, B Cork, C Complimentary cells, D Cork cambium
A Epidermis, B Complimentary cells, C Cork cambium, D Secondary cortex
With the help of bulliform cells.
With the help of casparian strips.
With the help of vascular bundles.
With the help of stomatal apparatus.
endarch
exarch
radial
closed
functionally.
only structurally.
both structurally and functionally.
for mitosis.
phellogen
vascular cambium
phloem
xylem
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