The waxy substance associated with cell walls of cork cells is or cork cells are impervious to water because of the presence or what is deposited on cork cells [CPMT 1981, 90; CBSE PMT 1994; AFMC 1985; DPMT 1990; MP PMT 2000; AIIMS 2004]
A) Cutin
B) Suberin
C) Lignin
D) Hemicellulose
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B)suberin is the waxy substance
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