Hormonal Contraceptives & Emergency Methods — NEET Biology
📚 Practice ConceptProgestogens alone or in combination with estrogen can also be used by females as injections or implants under the skin. Their mode of action is similar to that of pills and their effective periods are much longer. Administration of progestogens or progestogen-estrogen combinations or IUDs within 72 hours of coitus have been found to be very effective as emergency contraceptives as they could be used to avoid possible pregnancy due to rape or casual unprotected intercourse.
Which of the following statements about emergency contraceptives are correct? S1: Emergency contraceptives are generally effective when taken within 72 hours of unprotected coitus. S2: These contraceptives can involve progestogen-based pills or combinations of progestogen-estrogen. S3: Intra Uterine Devices (IUDs) can also be used as emergency contraceptives if inserted within 72 hours of coitus. S4: Emergency contraceptives are suitable for regular, long-term birth control and offer protection against STIs. S5: Their primary mode of action is to directly destroy ejaculated sperms and promote immediate menstrual bleeding.
View solution & NCERT explanation
Correct answer: C — S1, S2, and S3 only
Let's evaluate each statement: S1: Administration of progestogens or progestogen-estrogen combinations or IUDs within 72 hours of coitus have been found to be very effective as emergency contraceptives. This statement is correct. S2: Emergency contraceptives include progestogens alone or in combination with estrogen. This statement is correct. S3: IUDs can also be used as emergency contraceptives within 72 hours of coitus. This statement is correct. S4: Contraceptives are not regular requirements for the maintenance of reproductive health. They are used to prevent pregnancy or to delay/space pregnancy due to personal reasons, not for regular long-term birth control. Emergency contraceptives do not offer protection against STIs. Therefore, this statement is incorrect. S5: The mode of action of emergency pills is similar to that of regular pills, inhibiting ovulation and implantation, and altering cervical mucus. They do not primarily destroy sperms directly or guarantee immediate menstrual bleeding. Therefore, this statement is incorrect. Thus, statements S1, S2, and S3 are correct.
What does NCERT say about Progestogens alone or combination?
Has this concept appeared in NEET?
Which chapter is this from?
Through deep analysis of NEET and NTA, 176 of the 180 ReNEET 2026 (June 21) questions were already in the MedicNEET question bank before the exam.
176/180MedicNEET's Biology question bank is built from the same NCERT lines NTA picks repeatedly. Not random MCQs — questions crafted exactly like NTA crafts them.