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NEET 2019 · BiologyPrevious Year Question

Select the incorrect statement:

Answer: (C) LH and FSH decrease gradually during the follicular phase. Answer: (c) LH and FSH decrease gradually during the follicular phase Solution: This is the INCORRECT statement: during the follicular phase LH and FSH actually rise, with LH surging to trigger ovulation, not decreasing.

  1. A.FSH stimulates the sertoli cells which help in spermiogenesis
  2. B.LH triggers ovulation in ovary
  3. C.LH and FSH decrease gradually during the follicular phase✓
  4. D.LH triggers secretion of androgens from the Leydig cells

Correct Answer

(C) LH and FSH decrease gradually during the follicular phase

Solution & Explanation

Answer: (c) LH and FSH decrease gradually during the follicular phase Solution: This is the INCORRECT statement: during the follicular phase LH and FSH actually rise, with LH surging to trigger ovulation, not decreasing. The other options are correct — FSH supports Sertoli cell function/sperm maturation, LH induces ovulation in the ovary, and LH stimulates androgen secretion from Leydig cells of the testis. NCERT Reference: Chapter 19, Page 241, Line(s) 41–46 — "In males, LH stimulates the synthesis and secretion of hormones called androgens from testis. In males, FSH and androgens regulate spermatogenesis. In females, LH induces ovulation of fully mature follicles (graafian follicles)"

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