Phloem located only on the outer side of xylem is a characteristic feature of ________ vascular bundles.
Conjoint
Radial
Diagonal
Spherical
In TS of Dicotyledonous root the innermost layer of the cortex is called _________.
Pericycle
Metaxylem
Endodermis
Pith
The walls of the endodermal cells have deposition of water impermeable, waxy material suberin in the form of __________.
Protoxylem
Casparian strip
Cork cambium
In TS of dicotyledonous root next to endodermis lies a few layers of thick walled parenchymatous cells referred to as _________.
Metacycle
Procycle
In TS of Dicotyledonous root the parenchymatous cells which lies between the xylem and phloem are called _________.
Connective tissue
Conjuctive tissue
Cortex
Cambium
In TS of dicot root all tissue on the inner side of the endodermis such as Pericycle, vascular bundles and pith constitute the ________.
Medulla
Stele
Monocotyledonous root do not undergo any ________.
Cell division
Secondary growth
Differentiation
Tertiary growth
In TS of dicotyledonous stem the cells arranged in multiple layers between epidermis and Pericycle constitute the ___________.
Pericycle apparatus
Medullary rays
Starch sheath layer in plant stem is also known as
Epidermis
Metadermis
Pith layer
In TS of dicot stem ________ is present on the inner side of the endodermis and above the phloem in the form of semilunar patches of sclerenchyma.
___________ arrangement of vascular bundle is a characteristic of dicot stem.
Ring
Centric
Peripheral
A large number of rounded, parenchymatous cells with large intracellular spaces which occupy the central position of stem constitute the __________.
Lumen
Vascular bundle
Phloem parenchyma is absent in
Dicot stem
Monocot stem
Both A and B
In dicot leaves the ________ epidermis generally bears more stomata than the _________ epidermis.
Abaxial, adaxial
Adaxial, abaxial
Axial, coaxial
Coaxial, axial
The tissue between the upper and lower epidermis is called
Chlorophyll
Mesophyll
Mesophyll in dicot leaves has two type of cell namely_________.
Palisade parenchyma and spongy parenchyma
Pith and Protoxylem
Xylem and phloem
Epidermis and endodermis
Vascular bundles are surrounded by a layer of thick walled ________.
Bundle sheath cells
Cuticle
Waxy cell
In monocot leaf
Stomata is present on both surface of epidermis
Mesophyll is not differentiated into palisade and spongy parenchyma
There is no parenchyma
In grasses certain adaxial epidermal cells along the vein modify themselves into large, empty, colourless cells called ________.
Bark
Bulliform cells
Spongy mesophyll cells
Bulliform cells help in
Heat resistance
Minimizing water loss
Maintaining ion balance
Mineral acquisition
The similar size of vascular bundle in monocot leaf is due to
Reticulate venation
Parallel venation
Branched venation
Radial venation
The tissue involved in secondary growth are
Vascular cambium
In dicot stem the cells of cambium present between primary xylem and primary phloem is the ___________.
Intrafascicular cambium
Interfascicular cambium
Metafascicular cambium
Radial cambium
When cambial ring becomes active, the cells cut off toward pith mature into
Primary xylem
Secondary xylem
Primary phloem
Secondary phloem
When cambial rings become active and the cells cut off towards periphery mature into
The cambium is generally more active on the _________ side than the _________ side.
Inner, outer
Outer, inner
Radial, inner
Radial, outer
The primary and secondary phloem gets gradually crushed due to the continued formation and accumulation of _________.
Resin
Wax
In dicot stem, at some places the cambium forms a narrow band of parenchyma which passes through the secondary xylem and secondary phloem in radial direction these are called _________.
Secondary medullary rays
Rays
Primary medullary rays
Tertiary medullary rays
The wood formed during spring is called
Early wood
Late wood
Autumn wood
Summer wood
The wood formed during winter is called
Spring wood
Intermediate wood
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