Question

Mention one main function of the following.

Casparian strips

Answer 1

Casparian strips:

1. These are ring-like cell wall modifications composed of suberin.
2. These are found in the endodermis which is the innermost layer of the root cortex.

Function:

Casparian strips block the apoplastic movement of water and solutes through the cell wall of endodermal cells.