Question

Endodermis acts as biological check post and prevents wall to wall flow of materials because it has.

• A. Casparian strips
• B. Barrel-shaped cells
• C. Passage cells
• D. Specialised thickenings

Answer 1

Answer: (A)

Casparian strips

In the endodermal cells, lingo-suberised thickenings are present on the radial and tangential cell walls. These are called Casparian strip. Due to this, endodermis acts as biological check post and prevent wall to flow of materials.

So, the correct option is ‘Casparian strips’.