The transverse section of a plant material shows the following anatomical features, $(a)$ the vascular bundles are conjoint, scattered and surrounded by clerenchymatous undle sheaths $(b)$ phloem parenchyma is absent. What will you identify it as?
The transverse section of a plant material shows the following anatomical features, $(a)$ the vascular bundles are conjoint, scattered and surrounded by clerenchymatous undle sheaths $(b)$ phloem parenchyma is absent. What will you identify it as?
The monocot stem is characterised by conjoint, collateral, and closed vascular bundles, scattered in the ground tissue containing the parenchyma. Each vascular bundle is surrounded by sclerenchymatous bundle-sheath cells. Phloem parenchyma and medullary rays are absent in monocot stems.
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Definitions / Explanation :
$(i)$ A dorsiventral Leaf
$(ii)$ Periderm
Definitions / Explanation :
$(i)$ A dorsiventral Leaf
$(ii)$ Periderm
Distinguish between the following : Stele and vascular bundle.
Distinguish between the following : Stele and vascular bundle.
The cross-section of a plant material showed the following features when viewed under the microscope.
$(A)$ The vascular bundles were radially arranged.
$(B)$ Four xylem strands with exarch condition of protoxylem.
To which organ should it be assigned?
The cross-section of a plant material showed the following features when viewed under the microscope.
$(A)$ The vascular bundles were radially arranged.
$(B)$ Four xylem strands with exarch condition of protoxylem.
To which organ should it be assigned?
Assertion : In collateral vascular bundles, phloem is situated towards inner side.
Reason : In monocot stem, cambium is present
Assertion : In collateral vascular bundles, phloem is situated towards inner side.
Reason : In monocot stem, cambium is present
- [AIIMS 2000]
All the following statements regarding sieve tube elements are true except
All the following statements regarding sieve tube elements are true except