NEET BIOLOGY

Detailed explanation-1: -Casparian strips are the ring-like call wall modifications found in the root of the endodermis of vascular plants. It acts as a barrier to harmful chemicals like herbicides. So it is found in the walls of endodermal cells. Endoderm forms the central and innermost layer of cortex in terrestrial plants.

Detailed explanation-2: -Casparian strip is a band of cell wall material deposited on the radial and transverse walls of the endodermis and is chemically different from the rest of the cell wall. The cell wall being made of lignin and without suberin, whereas the Casparian strip is made of suberin and sometimes lignin.

Detailed explanation-3: -Casparian strips are a cellular feature found in the roots of all higher plants. They are ring-like, hydrophobic cell wall impregnations. These impregnations occur in the endodermis, an inner cell layer that surrounds the central vascular strand of roots (Figure 1).

Detailed explanation-4: -Casparian strip-A band of suberin, an impermeable substance, found in the endodermal cell walls of plant roots; it was named after R. Caspary.

Detailed explanation-5: -The central vascular structures of dicot roots are encircled by the ground tissue, which is primarily made up of parenchyma cells. The dicot root’s innermost cortical layer contains Casparian strips.