Which contraceptive method uses chemicals that immobilise or destroy sperm?
Answer and explanation
Correct answer: Spermicidal creams
The governing concept is the action of chemical spermicides. Spermicidal creams contain substances that immobilise sperm or damage them, so fewer viable sperm can reach and fertilise the ovum. Hence, option B is correct. Oral contraceptive pills mainly use hormones to inhibit ovulation and alter reproductive conditions; vasectomy surgically blocks the vas deferens; Copper-T releases copper ions in the uterus rather than being a spermicide cream.
Frequently asked questions
What is the correct answer to this question?
Spermicidal creams
Why is this the correct answer?
The governing concept is the action of chemical spermicides. Spermicidal creams contain substances that immobilise sperm or damage them, so fewer viable sperm can reach and fertilise the ovum. Hence, option B is correct. Oral contraceptive pills mainly use hormones to inhibit ovulation and alter reproductive conditions; vasectomy surgically blocks the vas deferens; Copper-T releases copper ions in the uterus rather than being a spermicide cream.
Which subject and chapter does this question cover?
This is a Class 12 Biology question. Chapter: Chapter 3: Reproductive Health. Topic: Birth control.
