- A Root cap zone, which protects the apical meristem
- B Meristematic zone, where active cell division occurs
- C Elongation zone, where cells increase in length
- D Maturation zone (root hair zone)
Correct answer: D. Maturation zone (root hair zone)
Explanation: The maturation (root hair) zone has differentiated cells including root hairs that massively increase surface area for water and mineral absorption. The root hair is an extension of a single epidermal cell.
Concept context
Internal tissue organisation: meristems, permanent tissues (xylem, phloem, parenchyma), and secondary growth. Frequently tested in NEET.