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NEET 2023 Phase 1 · BiologyPteridophytesPrevious Year Question

Which of the following statements is correct?

Answer: (C) Ovules are not enclosed by ovary wall in gymnosperms. Answer: (C) Ovules are not enclosed by ovary wall in gymnosperms.

  1. A.Horsetails are gymnosperms
  2. B.Selaginella is heterosporous, while Salvinia is homosporous
  3. C.Ovules are not enclosed by ovary wall in gymnosperms✓
  4. D.Stems are usually unbranched in both Cycas and Cedrus

Correct Answer

(C) Ovules are not enclosed by ovary wall in gymnosperms

Solution & Explanation

Answer: (C) Ovules are not enclosed by ovary wall in gymnosperms. Solution: By definition gymnosperms (gymnos: naked, sperma: seeds) have ovules that are not enclosed by any ovary wall and remain exposed, so this statement is correct. The distractors are wrong: horsetails (Equisetum) are pteridophytes, not gymnosperms; both Selaginella and Salvinia are heterosporous; and while Cycas is unbranched, Cedrus is branched. NCERT Reference: Class XI Biology, Plant Kingdom, p.32, lines 28-30 — "The gymnosperms (gymnos : naked, sperma : seeds) are plants in which the ovules are not enclosed by any ovary wall and remain exposed, both before and after fertilisation.".

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