Question

Oral contraceptives check

• A. ovulation
• B. fertilization
• C. implantation
• D. entry of sperm into vagina

Answer 1

The correct option is A

ovulation

The correct option is A:

Explanation of the correct option:

1. Oral contraceptives or pills are taken daily, which prevent ovulation in females.
2. These pills prevent ovulation but allow monthly shedding of the uterine lining through menstrual bleeding.

Explanation of the incorrect options:

Option B:

Fertilization can be prevented in various ways:

1. Mechanical methods of contraception in which semen is prevented from entering the fallopian tube.
2. Chemical methods like spermicides kill the sperm and prevent fertilization.
3. Surgical methods like vasectomy and tubectomy.

Option C:

Implantation is prevented by an intrauterine device (IUD) which releases certain secretions that prevent the implantation of an embryo in the uterine wall.

Option D:

Entry of sperm into the vagina can be prevented by physical methods of contraception like condoms or a diaphragm.

Final answer: The oral contraceptives prevent ovulation in females