Question

Bark cells are impervious to gases and water . What is the reason

Answer 1

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

Answer 2

Hello friend !!!!

Here's the answer to you question.

Bark is formed due to the secondary growth of phloem and xylem in the tree.

As a result these bark cells are converted into dead cells as no exchange of water, minerals or nutrients takes place through them

The transportation takes place mainly through the secondary xylem and phloem.

So basically, they are impervious to gasses and water because they are converted to dead cells after the formation of the secondary vessels.

HOPE THAT HELPS ..... ☺️