NEET 2016 Phase 1 · BiologyFruit seedPrevious Year Question

Cotyledon of maize grain is called: (NEET 2016 (Phase I))

Answer: (D) Scutellum. A maize grain is a monocot (endospermic) seed whose single, large, shield-shaped cotyledon is the scutellum.

  1. A.Plumule
  2. B.Coleorhiza
  3. C.Coleoptile
  4. D.Scutellum

Correct Answer

(D) Scutellum

Solution & Explanation

A maize grain is a monocot (endospermic) seed whose single, large, shield-shaped cotyledon is the scutellum. The plumule is the embryonic shoot, while the coleoptile and coleorhiza are protective sheaths covering the plumule and radicle respectively — none of these is the cotyledon. So the cotyledon of maize is the scutellum. NCERT Reference: Ch 5, p.67, lines 17-21 — "It consists of one large and shield shaped cotyledon known as scutellum and a short axis with a plumule and a radicle. The plumule and radicle are enclosed in sheaths which are called coleoptile and coleorhiza respectively"

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