Question

What is the possible explanation for the presence of a rigid cell wall in plants​

Answer 1

Plants remain exposed to changes in temperature and thus require rigid cell walls to protect themselves. b. Plants are subjected to osmotic pressure and a. cell wall helps them against bursting or shrinking.

Answer 2

Answer:

Because plants don't move from one another and they need to be protected by rainfall, heavy wind etc. That's why they have a rigid cell wall to protect plant cell being destroyed by any of them.