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  • Cork cells are made impervious to water and gases by the presence of (a) cellulose (b) lipids (c) suberin (d) lignin

Cork cells are made impervious to water and gases by the presence of
(a) cellulose
(b) lipids
(c) suberin
(d) lignin

Answers (1)

Answer- (c)
Solution-
Cellulose is present in the cell wall of plants. Plasma membrane is selectively permeable and it is not impervious to water. Lignin acts as a cement and helps in the hardening of the cell wall. The thin walls of the cork cells are saturated with an organic waxy substance, suberin. It makes cork almost impervious to water and air.
The correct option is – (c)- suberin

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