The casparian strips of root endoderm contain a mixture of

Options

A. Cellulose and cutin
B. Cellulose and lignin
C. Lignin and suberin
D. Cellulose and suberin

Answer

C

Explanation

Casparian strips of the root endodermis contained and equal amount of suberin and lignin. Lignin and suberin are the only known biological polymers that are irregular.