Lesson eLearning

Which of the following sequences correctly represents the hormonal events that lead to ovulation during the follicular phase of the menstrual cycle?

medium MCQ 3 marks Class 12 · Biology · Human Reproduction
  1. LH surge → FSH rise → estrogen rise → ovulation
  2. FSH rise → estrogen rise → LH surge → ovulation
  3. Estrogen rise → FSH rise → LH surge → ovulation
  4. Estrogen rise → LH surge → FSH rise → ovulation
Answer
FSH rise → estrogen rise → LH surge → ovulation

The correct answer is FSH rise → estrogen rise → LH surge → ovulation — The LH surge induces ovulation.

Step-by-step solution

  1. Identify the correct order of hormone changes.
  2. Recognise that FSH stimulates follicle growth, causing estrogen production.
  3. The rise in estrogen triggers the LH surge.
  4. The LH surge induces ovulation.
Common mistake: Confusing the order of FSH and estrogen rise.

Concept tested: Hormonal regulation of ovulation

Published · How this solution was prepared and checked

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