STD Prevention Measures — NEET Biology
📚 Practice ConceptWhat are the measures one has to take to prevent from contracting STDs?
Which of the following statements about barrier contraceptive methods are NOT correct? S1: Condoms are disposable and can be self-inserted, offering privacy to the user. S2: The primary advantage of diaphragms over condoms is their single-use nature and higher effectiveness against STIs. S3: Spermicidal creams, jellies, and foams are commonly used along with diaphragms, cervical caps, and vaults to increase their contraceptive efficiency. S4: All barrier methods solely prevent conception by physically blocking the meeting of gametes, with no additional chemical action involved. S5: Condoms protect against STIs by physically blocking the passage of both sperms and pathogens.
View solution & NCERT explanation
Correct answer: B — S2 and S4 only
Let's evaluate each statement: S1: Condoms are disposable, can be self-inserted and thereby gives privacy to the user. This statement is correct. S2: Condoms are disposable, while diaphragms are reusable. Condoms offer protection against STIs, not diaphragms. This statement incorrectly compares features and benefits. Therefore, this statement is NOT correct. S3: Spermicidal creams, jellies and foams are usually used alongwith these barriers (diaphragms, cervical caps, and vaults) to increase their contraceptive efficiency. This statement is correct. S4: While barrier methods physically block gametes, spermicidal agents are chemical and are used with some barriers (diaphragms, caps, vaults) to increase efficiency. Thus, claiming no additional chemical action is involved for all barrier methods is incorrect. Therefore, this statement is NOT correct. S5: Condoms protect against STIs by blocking the passage of pathogens and sperms. The question states that condoms block the passage of sperms, and their protection against STIs implies they block pathogens. This statement is correct. Statements S2 and S4 are NOT correct.
What does NCERT say about What are measures one?
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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.