The chief water conducting elements of xylem | vedclass

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(D) : The chief water conducting elements of xylem in gymnosperms are tracheids. These are elongated cells with tapering ends and are dead at maturity

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tracheids

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(D) : The chief water conducting elements of xylem in gymnosperms are tracheids. These are elongated cells with tapering ends and are dead at maturity due to the deposition of lignin. These cells exhibit scalariform,annular,reticulate,or bordered pitted thickenings. Tracheids are the primary water-conducting xylem elements in both gymnosperms and pteridophytes. Generally,vessels are absent in gymnosperms,with rare exceptions such as $Gnetum$,$Welwitschia$,and $Ephedra$.

The chief water conducting elements of xylem in gymnosperms are

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