The Cell Walls of Fungi are Composed Mainly of ____

Question

The cell walls of fungi are composed mainly of ____.  
A) cellulose
B) lignin
C) chitin
D) pectin
E) protein

Accepted Answer

The cell walls of fungi are made up of chitin, a strong and flexible polysaccharide similar in structure to cellulose, but with added nitrogen-containing side chains. Chitin gives the fungi their rigidity and protection against osmotic pressure.