1.

The waxy substance associated with cell walls of cork cells is or cork cells are imprevious to water becauce of the presence or what is deposited on cork cellsA. CutinB. SuberinC. LigninD. Hemicellulose

Answer» Correct Answer - B
After actual falling of leaf, the scar is exposed to air, which develops a primary protective layer by deposition of lignin and suberin on their wall.


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