Menstrual Cycle
Ovulation is triggered by a surge in which hormone?
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About This Question
- Subject
- biology
- Chapter
- reproduction
- Topic
- menstrual cycle
- Difficulty
- Easy
- Year
- 2025
Solution
Correct Answer:
LH
- Menstrual Cycle: Controlled by pituitary and ovarian hormones.
- Gonadotropins (FSH and LH): These increase gradually during the follicular phase.
- The Surge: In the middle of the cycle (around day 14), both FSH and LH attain a peak level.
- LH Surge: Rapid secretion of LH leading to its maximum level induces the rupture of the Graafian follicle.
- Result: This leads to the release of the ovum (ovulation).
This easy difficulty biology question is from the chapter reproduction, covering the topic of menstrual cycle. It appeared in the 2025 exam.
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