- A Outermost protective layer covering the young root
- B Innermost layer of root cortex surrounding the vascular bundle
- C Middle photosynthetic layer found within the leaf mesophyll
- D Outer corky layer forming part of the stem bark
Correct answer: B. Innermost layer of root cortex surrounding the vascular bundle
Explanation: The endodermis is the innermost layer of the root cortex that surrounds the vascular cylinder (stele). Its cells have the Casparian strip. It controls what enters the vascular tissue.
Concept context
Internal tissue organisation: meristems, permanent tissues (xylem, phloem, parenchyma), and secondary growth. Frequently tested in NEET.