Question
Biology Question on Secondary Growth
The secondary wall material Suberin is deposited on the walls of
A
Pericycle of stem and endodermis of root
B
Phellum of stem and endodermis of root
C
Epidermis of stem and endodermis of root
D
Phellogen and phelloderm
Answer
Phellum of stem and endodermis of root
Explanation
Solution
Suberin is a waterproofing waxy substance found in higher plants. Suberin is found in the phellem layer of the periderm in the stem and forms casparian strips in the emdodermis of roots. Its main function is as a barrier to movement of water and solutes.