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NEET 2022 · BiologyPrevious Year Question

Which of the following is a correct statement? (NEET Odisha)

Answer: (C) IUDs increase phagocytosis of sperms in the uterus.. Answer: (c) IUDs increase phagocytosis of sperms in the uterus.

  1. A.IUDs once inserted need not be replaced.
  2. B.IUDs are generally inserted by the user herself.
  3. C.IUDs increase phagocytosis of sperms in the uterus.✓
  4. D.IUDs suppress gametogenesis.

Correct Answer

(C) IUDs increase phagocytosis of sperms in the uterus.

Solution & Explanation

Answer: (c) IUDs increase phagocytosis of sperms in the uterus. Solution: IUDs act by increasing phagocytosis of sperms within the uterus, and Cu ions suppress sperm motility and fertilising capacity. They are inserted by doctors or expert nurses (not the user herself), do not suppress gametogenesis, and the other claim about never needing replacement is incorrect. NCERT Reference: Reproductive Health, p.44 — "IUDs increase phagocytosis of sperms within the uterus and the Cu ions released suppress sperm motility and the fertilising capacity of sperms."

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