Home › UP Board Class 12 › biology › Reproductive Health › Oral contraceptive pills (OCPs) work primarily by:
Oral contraceptive pills (OCPs) work primarily by:
AKilling the sperm before they reach the egg
BPreventing ovulation through hormonal feedback
CPermanently sterilising the female reproductive system
DPreventing the embryo from implanting by acidifying the uterus
Answer & Solution
Correct answer: B. Preventing ovulation through hormonal feedback
OCPs contain synthetic estrogen + progestin which inhibit GnRH, FSH, LH → prevent ovulation. They also thicken cervical mucus and thin the uterine lining, but the primary mechanism is preventing ovulation.
Related questions
In the technique called ICSI (Intracytoplasmic Sperm Injection):The 2021 amendment to the MTP Act extended the upper time-limit for pregnancy termination HIV (Human Immunodeficiency Virus) primarily attacks which cells of the immune system?Tubectomy is a surgical sterilisation procedure performed on:Which contraceptive method ALSO prevents sexually transmitted infections?Amniocentesis was BANNED for sex-determination purposes in India by:The legal minimum age of marriage in India for males and females respectively is:The Reproductive and Child Health (RCH) programme replaced India's earlier Family Planning