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Describe briefly the various regions of root.

GeneralClass 12AllAnswered 27 Mar 2026
Answer

Solution:

A typical root has four distinct zones:

  1. Root Cap (Calyptra):
  • Protects the root apical meristem
  • Secretes mucilage for lubrication
  • Contains statoliths for gravity perception
  1. Region of Meristematic Activity:
  • Located just above root cap
  • Cells are small, thin-walled, densely cytoplasmic
  • Undergo rapid mitotic divisions
  1. Region of Elongation:
  • Cells undergo rapid elongation and enlargement
  • Responsible for increase in root length
  • No cell division
  1. Region of Maturation (Differentiation):
  • Cells differentiate into permanent tissues
  • Root hairs develop (piliferous zone)
  • Absorption of water and minerals occurs

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