Protoxylem and metaxylem are components of wh | vedclass

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(A) In plants,the primary xylem is the first formed xylem tissue that differentiates from the procambium during primary growth.It consists of two type

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Primary xylem

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(A) In plants,the primary xylem is the first formed xylem tissue that differentiates from the procambium during primary growth.It consists of two types of vessels based on the time of their development:$1$. $Protoxylem$: The first-formed primary xylem elements,which are smaller in diameter.$2$. $Metaxylem$: The later-formed primary xylem elements,which are larger in diameter.Therefore,both $Protoxylem$ and $Metaxylem$ are components of the primary xylem.

Column-$I$	Column-$II$
$P$. Parenchyma	$I$. No thickening
$Q$. Collenchyma	$II$. Pectin thickening
$R$. Sclerenchyma	$III$. Lignin thickening

Protoxylem and metaxylem are components of which of the following?

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Match the following columns:

Column-$I$ Column-$II$

$P$. Parenchyma $I$. No thickening

$Q$. Collenchyma $II$. Pectin thickening

$R$. Sclerenchyma $III$. Lignin thickening

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