The following figure shows the pathway of tra | vedclass

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(B) In the given diagram of the root pathway,the transport of water occurs through symplastic and apoplastic pathways.$P$ represents the plasmodesmata

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Plasmodesmata,Cortex,Casparian strip

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(B) In the given diagram of the root pathway,the transport of water occurs through symplastic and apoplastic pathways.$P$ represents the plasmodesmata,which are channels that traverse the cell walls of plant cells and some algal cells,allowing transport and communication between them.$Q$ represents the cortex,which is the region between the epidermis and the vascular cylinder.$R$ represents the Casparian strip,which is a band of cell wall material deposited in the radial and transverse walls of the endodermis,and is chemically different from the rest of the cell wall.

Column-$I$	Column-$II$
$i$. Gravitational water	$a$. Water absorbed and held by soil particles.
$ii$. Hygroscopic water	$b$. Water present in pores between soil particles.
$iii$. Combined water	$c$. Water that percolates deep into the soil.
$iv$. Capillary water	$d$. Present in the form of hydrated oxides of silicon or aluminium.

The following figure shows the pathway of transport in the root. What are $P, Q,$ and $R$?

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