Sap wood
Heart wood
Spring wood
Autumn wood
C. Spring wood
A Epiblema, B Root hair, C Cortex, D Endodermis, E Pith, F Pericycle
A Cortex, B Pith, C Epiblema, D Endodermis, E Root hair, F Pericycle
A Epiblema, B Endodermis, C Cortex, D Root hair, E Pith, F Pericycle
A Cortex, B Epiblema, C Pith, D Endodermis, E Root hair, F Pericycle
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
(iii) and (iv)
(i) and (ii)
(ii) and (iii)
(ii) and (iv)
A Leaf primordium, B Shoot apical meristem, C Axillary bud
A Leaf primordium, B Shoot apical meristem, C Apical bud
A Root hair primordium, B Root apical meristem, C Axillary bud
A Root hair primordium, B Root apical meristem, C Terminal bud
secondary xylem and phloem.
primary xylem and phloem.
secondary xylem only.
primary phloem and secondary xylem.
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 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
transpiration
guttation
gaseous exchange
both (a) & (c)
photosynthesis.
to protect the plant.
to anchor the plant.
water and sugar conduction.
size of leaf lamina at the node below each internode
intercalary meristem
shoot apical meristem
position of axillary buds
conjoint, collateral, open polyarch vascular bundle.
exodermis, endarch, tetrarch closed vascular bundles.
suberized exodermis, casparian strip, passage cells, cambium.
suberized exodermis, polyarch xylem, pith.
Pith - Large and well developed in monocotyledonous root.
Root hairs - Helps in preventing water loss due to transpiration
Sieve tube elements - Its functions are controlled by the nucleus of companion cells.
Stomatal apparatus - Consists of stomatal aperture, guard cells and surrounding subsidiary cells
origin
function
position
development
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
Column-I | Column-II |
---|---|
(Structure) | (Function) |
A. Stomata | I. Protection of stem |
B. Bark | II. Plant movement |
C. Cambium | III. Secondary growth |
D. Cuticle | IV. Transpiration |
V. Prevent the loss of water | ... |
A V, B III, C I, D IV
A I, B IV, C V, D III
A II, B IV, C I, D III
A IV, B I, C III, D V
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
collenchyma
sclerenchyma
xylem
meristem
cambium
phloem fibres
thick-walled tracheids
xylem fibres
Dicotyledonous root
Monocotyledonous root
Dicotyledonous stem
Monocotyledonous stem
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
functionally.
only structurally.
both structurally and functionally.
for mitosis.
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
Radial; Conjoint closed; Conjoint open
Conjoint closed; Conjoint open; Radial
Conjoint open; Conjoint closed; Radial
Bicollateral; Concentric; Radial
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.
cytoskeleton.
mitochondria.
endoplasmic reticulum.
chloroplasts.
bordered pits.
no ends walls.
broader lumen and perforated cross walls.
no protoplasm.
(i) and (iv) only
(ii) and (v) only
(iii) and (iv) only
(ii), (iii) and (v) only
Parenchyma
Sclerenchyma
Collenchyma
Chlorenchyma
Lateral meristem
Apical meristem
Intercalary meristem
Both
phellogen
vascular cambium
phloem
xylem