Question

Choose the correct answers from the alternatives given :
The .......... strip in endodermal cell walls forces water and solutes that entered roots to move through the cells, not around them.

• A. cutin
• B. casparian
• C. lignin
• D. cellulose

Answer 1

The correct option is B casparian

At the endodermis, water movement through the apoplast pathway is obstructed by Casparian strip. The Casparian strip is a band of radial cell walls in the endodermis that is impregnated with the wax-like, hydrophobic substance called suberin. Suberin acts as a barrier to water and solute movement. Casparian strip breaks the continuity of the apoplast pathway and forces water and solutes to cross the endodermis by passing through the plasma membrane.

So, the correct option is 'Casparian'.