Question

13. Bark of a tree which is protective in function is impervious to water and gases. Which chemical helps it to achieve this
characteristic?​

Answer 1

Answer:

$\huge\bf{{\color{navy}{a}}{\color{indigo}{n}}{\color{blue}{s}}{\blue{w}}{\color{skyblue}{e}}{\color{lightblue}{r}}}$

Explanation:

suberin

1 Answer.

(a) Cells of bark are dead and compactly arranged without intercellular spaces. They have a chemical called suberin in their walls that make them impervious to gases and water.