A transverse section of a plant organ shows v | vedclass

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(B) The presence of vessels is a characteristic feature of angiosperms,but they are generally absent in gymnosperms. However,$Ephedra$ is an exception

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Ephedra

Vedclass · Answer

(B) The presence of vessels is a characteristic feature of angiosperms,but they are generally absent in gymnosperms. However,$Ephedra$ is an exceptional gymnosperm that possesses vessels in its xylem. Companion cells are specialized cells associated with sieve tubes in the phloem of angiosperms. Since $Ephedra$ is a gymnosperm,it lacks companion cells (it has albuminous cells instead). Therefore,an organ showing vessels but lacking companion cells belongs to $Ephedra$.

$A$ transverse section of a plant organ shows vessels but does not show companion cells. This organ may belong to:

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