- A The outermost cortex layer, which gradually differentiates into the corky outer bark over time
- B Outermost layer of vascular cylinder - gives rise to lateral roots and part of vascular cambium
- C An innermost epidermal layer that directly protects the central vascular cylinder structure
- D Undifferentiated storage parenchyma tissue scattered throughout the entire root cortex region
Correct answer: B. Outermost layer of vascular cylinder - gives rise to lateral roots and part of vascular cambium
Explanation: The pericycle is the outermost layer of the vascular cylinder (stele), just inside the endodermis. In roots, lateral roots arise from pericycle cells (endogenous origin). In secondary growth, vascular cambium is partly derived from pericycle.
Concept context
Internal tissue organisation: meristems, permanent tissues (xylem, phloem, parenchyma), and secondary growth. Frequently tested in NEET.