Question

Bark cells are impervious to gases and water. what experiment will you perform to prove this??

Answer 1

Take two pieces of cinnamon bark.
Place one in water and other in open air.
Leave it for two days.
We observe that the two barks placed in water and air neither swell nor shrink.
Therefore bark cells are impervious to gases and water.
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Answer 2

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. ♦ in big tress dermal tissue forms several layers above the epidermis it is called bark.

. ♦ The several layers of bark does not allow any things like gases amd water to pass through it.

. ♦ hence bark cells are impervious to gases and water.