How many histogens are present at the apex of | vedclass

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(C) According to the histogen theory proposed by Hanstein,the root apex is composed of three distinct layers of meristematic tissue called histogens.T

Vedclass · Accepted Answer

$3$

Vedclass · Answer

(C) According to the histogen theory proposed by Hanstein,the root apex is composed of three distinct layers of meristematic tissue called histogens.These three histogens are:$1$. Dermatogen: The outermost layer that gives rise to the epidermis (epiblema).$2$. Periblem: The middle layer that develops into the cortex.$3$. Pleurome: The central core that gives rise to the stele (vascular cylinder).Therefore,there are $3$ histogens present at the apex of the root.

	$P$	$Q$
$A$	Epiblema	Cortex
$B$	Cortex	Epiblema
$C$	Stele	Cortex
$D$	Cortex	Stele

List-$I$	List-$II$
$A$. Conjunctive tissue	$I$. Specialised cells in the vicinity of guard cells
$B$. Casparian strips	$II$. Endodermal cells rich in starch
$C$. Subsidiary cells	$III$. Tissue between xylem and phloem
$D$. Starch sheath	$IV$. Endodermal cells with suberin deposition

How many histogens are present at the apex of the root?

Similar Questions

The given figure shows a section of a root apex. Select the correct option for $P$ and $Q$.
$P$ $Q$
$A$ Epiblema Cortex
$B$ Cortex Epiblema
$C$ Stele Cortex
$D$ Cortex Stele

The innermost layer of the cortex is called

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