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Question
The outer cellular complex present on the outside of those stems and roots which have undergone secondary growth is?
The outer cellular complex present on the outside of those stems and roots which have undergone secondary growth is?
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Solution
The correct option is D Periderm
A. Periderm - During secondary growth in both dicot stem and root, multilayered or cellular complex tissue formed in the region of cortex is called Periderm. It is formed towards the outer side of the stem or root.
B.Epiblema – Epidermis with root hairs is called Epiblema.
C. Phelloderm – the parenchymatous formed towards inner side of the cork cambium is called phelloderm or secondary cortex.
D. Phellogen – a ring of meristematic tissue formed by the dedifferentiation of parenchyma present in the general cortex of dicot stem or root is called Phellogen or cork cambium.
So, the correct option is ‘Periderm’.
A. Periderm - During secondary growth in both dicot stem and root, multilayered or cellular complex tissue formed in the region of cortex is called Periderm. It is formed towards the outer side of the stem or root.
B.Epiblema – Epidermis with root hairs is called Epiblema.
C. Phelloderm – the parenchymatous formed towards inner side of the cork cambium is called phelloderm or secondary cortex.
D. Phellogen – a ring of meristematic tissue formed by the dedifferentiation of parenchyma present in the general cortex of dicot stem or root is called Phellogen or cork cambium.
So, the correct option is ‘Periderm’.
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