NEET 2019 Odisha · BiologyIntercalary meristemPrevious Year Question

Regeneration of damaged growing grass following grazing is largely due to :-

Answer: (C) Intercalary meristem. Answer: (C) Intercalary meristem.

  1. A.Lateral meristem
  2. B.Apical meristem
  3. C.Intercalary meristem
  4. D.Secondary meristem

Correct Answer

(C) Intercalary meristem

Solution & Explanation

Answer: (C) Intercalary meristem. Solution: Intercalary meristems are located at the base of internodes and leaves (as in grasses and other monocots). They are remnants of the apical meristem left behind during growth and allow the plant to continue elongating from these basal regions. This is why grasses can rapidly regrow after the upper parts are removed by grazing or mowing, since the dividing tissue lies below the cut. NCERT Reference: NCERT (Class XI, Anatomy of Flowering Plants – The Tissues / Meristematic Tissues subsection, pre-2023 rationalisation text): intercalary meristems occur between mature tissues, e.g. at the base of leaves or internodes (as in grasses), and both apical and intercalary meristems are primary meristems contributing to growth in length.

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