Question

Bark cells are impervious to gases and water.why?

Answer 1

Bark cells are impervious to water and gases. Because bark cells are dead cells of epidermis which has suberin chemical in it.This chemical doesn't allow water and gases. So bark cells are impervious to water and gases. Hope this helps you

Answer 2

Bark cells are impervious to gases and water because they contain a chemical called suberin which doesn't allow gases or water into the tree as bark cells are in the bark outer most layer of the tree they are impervious to gases and water. Hope this helps u