Vascular bundles with phloem on either side of the cambium are ______________.

Biocollateral closed

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Bicollateral open

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Radial

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Biradial

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Solution

The correct option is B Bicollateral open
Bicollateral vascular bundles contain two patches of phloem on either side 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. If the cambium is present in between xylem and phloem, it is called as bicollateral open.
So, the correct option is ‘Bicollateral’ i.e. B.

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Similar questions

(A) Radial vascular bundle -	Xylem and phloem on different radii
(B) Bicollateral vascular bundle -	Phloem present on both sides of xylem
(C) Amphivasal vascular bundle -	Phloem surrounds xylem
(D) Conjoint vascular bundle -	Xylem and phloem on same radii

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