A) Cellulose
B) Pectin
C) Lignin
D) Chitin
Correct Answer: A
Solution :
Each cell of Spirogyra is surrounded by two layered cell wall. Its inner layer is made up of cellulose and outer layer is made up of pectose but quantity of cellulosic substances is high in comparison to pectose.You need to login to perform this action.
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