Which one or more of the following is true about root endodermis?
A. The endodermis contains impermeable lignin and suberin called a Casparian strip that controls water and nutrient movement between adjacent cell walls.
B. The endodermis is two to three layers of spherical cells.
C. The endodermis forms a boundary between the cortex and inner vascular cylinder of the root.
D. All of the choices are true of root endodermis.
E. The endodermis forms a boundary between the cortex and inner vascular cylinder of the root and contains impermeable lignin and suberin.
Answer: E
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