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Question
A bundle having phloem on either side of xylem is
A bundle having phloem on either side of xylem is
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Solution
The correct option is A Bicollateral
Bicollateral vascular bundles contain two patches of phloem on either sides of the xylem on the same radius. The outer phloem or external phloem remains towards the periphery of the central cylinder and inner or internal phloem remains towards the centre. In radial type of vascular bundles, xylem and phloem tissues occur in separate groups on alternate radial positions. This is seen in roots. Sometimes, the either xylem surrounds the phloem tissue or vice versa. Such vascular bundles are called concentric vascular bundles. In collateral bundle a single patch of phloem is present. Xylem lies on the inner side and phloem on the outer side. Thus, option A is correct.
Bicollateral vascular bundles contain two patches of phloem on either sides of the xylem on the same radius. The outer phloem or external phloem remains towards the periphery of the central cylinder and inner or internal phloem remains towards the centre.
In radial type of vascular bundles, xylem and phloem tissues occur in separate groups on alternate radial positions. This is seen in roots.
Sometimes, the either xylem surrounds the phloem tissue or vice versa. Such vascular bundles are called concentric vascular bundles.
In collateral bundle a single patch of phloem is present. Xylem lies on the inner side and phloem on the outer side. Thus, option A is correct.
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