Below are 20 Important CBSE Class 12 Biology (2026–27) Chapter 3: Reproductive Health questions and answers. They are designed for based on the latest CBSE syllabus covering reproductive health, contraception, MTP, STDs, infertility, ART, RCH programmes, and amniocentesis.
1. What is reproductive health? Why is it important?
Answer:
Reproductive health refers to a state of complete physical, mental, emotional, and social well-being in all matters related to reproduction. It does not merely mean the absence of disease. Good reproductive health enables individuals to have safe and satisfying reproductive lives and make informed decisions regarding family planning. It helps reduce maternal and infant mortality, prevents sexually transmitted diseases (STDs), controls population growth, and promotes healthy motherhood and childhood. Awareness about reproductive health also encourages responsible sexual behaviour and gender equality. Thus, reproductive health is essential for the well-being of individuals, families, and society as a whole.
2. What are the objectives of the Reproductive and Child Health (RCH) Programme?
Answer:
The Reproductive and Child Health (RCH) Programme was launched by the Government of India to improve reproductive health awareness and services. Its objectives include providing proper maternal and child healthcare, promoting family planning, reducing infant and maternal mortality rates, and creating awareness about reproductive health issues. The programme also focuses on vaccination, nutritional support, prevention and treatment of reproductive tract infections, and education about contraception. Through counselling and healthcare facilities, the RCH Programme aims to ensure healthy reproductive lives for individuals and better health outcomes for mothers and children across the country.
3. What is population explosion? Mention two measures to control it.
Answer:
Population explosion refers to the rapid and uncontrolled increase in human population over a short period. It puts pressure on natural resources, healthcare facilities, food supply, housing, education, and employment opportunities. To control population growth, governments promote family planning programmes and encourage the use of contraceptive methods. Another important measure is educating people, especially women, about reproductive health and the benefits of small families. Delayed marriage, improved literacy, and awareness campaigns also help in reducing birth rates. These measures contribute significantly to population stabilization and sustainable development.
4. Explain the natural methods of contraception.
Answer:
Natural methods of contraception prevent pregnancy without using any devices or medicines. These methods include periodic abstinence, coitus interruptus, and lactational amenorrhea. In periodic abstinence, couples avoid sexual intercourse during the fertile period of the menstrual cycle. Coitus interruptus involves withdrawal of the penis before ejaculation. Lactational amenorrhea is effective for about six months after childbirth when the mother exclusively breastfeeds the baby, preventing ovulation. These methods are inexpensive and have no side effects. However, they are less reliable than other contraceptive methods because they require strict self-control and accurate knowledge of the reproductive cycle.
5. Describe barrier methods of contraception.
Answer:
Barrier methods prevent the meeting of sperm and ovum by creating a physical barrier. Common examples include condoms, diaphragms, cervical caps, and vaults. Male and female condoms are widely used because they are inexpensive, easily available, and provide protection against sexually transmitted diseases, including HIV/AIDS. Diaphragms and cervical caps are placed over the cervix to block sperm entry into the uterus. Barrier methods are safe, reversible, and do not interfere significantly with normal body functions. Due to their effectiveness and additional protection against infections, condoms are among the most recommended contraceptive methods worldwide.
6. What are intrauterine devices (IUDs)? Give examples.
Answer:
Intrauterine Devices (IUDs) are contraceptive devices inserted into the uterus by trained medical professionals. They prevent fertilization and implantation, thereby avoiding pregnancy. IUDs are classified into non-medicated, copper-releasing, and hormone-releasing devices. Examples include Lippes Loop, Copper-T, Copper-7, and Multiload-375. Copper-releasing IUDs increase phagocytosis of sperms and reduce sperm motility, while hormone-releasing IUDs alter the uterine environment, making it unsuitable for implantation. IUDs are highly effective, long-lasting, and reversible methods of contraception, making them suitable for women seeking prolonged pregnancy prevention.
7. What are oral contraceptive pills?
Answer:
Oral contraceptive pills are hormonal preparations taken by women to prevent pregnancy. These pills generally contain synthetic progesterone or a combination of progesterone and estrogen. They inhibit ovulation, alter cervical mucus, and prevent implantation of the fertilized egg. Oral pills are usually taken daily for 21 days, followed by a gap before starting the next cycle. When used correctly, they are highly effective and reversible. However, they should be taken under medical supervision because improper use may reduce effectiveness or cause side effects. Oral contraceptives play a significant role in family planning and reproductive health management.
8. Explain surgical methods of contraception.
Answer:
Surgical methods of contraception are permanent methods used to prevent pregnancy. In males, vasectomy is performed by cutting and tying the vas deferens, preventing sperm transport. In females, tubectomy involves cutting and tying the fallopian tubes, preventing the ovum and sperm from meeting. These procedures are simple, safe, and highly effective when performed by qualified medical professionals. Surgical methods do not affect sexual desire or hormone production. They are recommended for individuals or couples who have completed their families and do not wish to have more children. These methods provide long-term and reliable contraception.
9. What is Medical Termination of Pregnancy (MTP)?
Answer:
Medical Termination of Pregnancy (MTP) refers to the intentional termination of pregnancy before full-term development of the fetus. It is commonly known as abortion when performed legally under medical supervision. MTP may be recommended in cases of unwanted pregnancy, contraceptive failure, risk to the mother’s health, or severe fetal abnormalities. Early-stage MTP is generally safer than termination during advanced pregnancy. When carried out by qualified healthcare professionals under proper conditions, MTP helps reduce maternal mortality associated with unsafe abortions. However, repeated abortions can have adverse effects on reproductive health and should not replace regular contraceptive methods.
10. Why is MTP considered necessary in certain situations?
Answer:
MTP becomes necessary in situations where continuation of pregnancy may threaten the health of the mother or fetus. It is also used in cases of unwanted pregnancy resulting from contraceptive failure, rape, or fetal abnormalities. In some medical conditions, pregnancy can endanger the mother’s life, making termination essential. MTP helps reduce the incidence of unsafe abortions and associated health complications. It also provides women with reproductive choices while ensuring proper medical care. Therefore, when performed legally and ethically under medical supervision, MTP serves as an important component of reproductive healthcare services.
11. What are sexually transmitted diseases (STDs)?
Answer:
Sexually transmitted diseases (STDs) are infections that spread primarily through sexual contact. Common STDs include gonorrhoea, syphilis, genital herpes, chlamydiasis, hepatitis-B, genital warts, and HIV/AIDS. These diseases may affect the reproductive organs and can lead to serious health complications if left untreated. Symptoms may include genital irritation, pain, abnormal discharge, or ulcers, although some infections remain symptomless for long periods. Early diagnosis and treatment are essential to prevent complications such as infertility and chronic illness. Public awareness, safe sexual practices, and regular medical check-ups help reduce the spread of STDs.
12. How can sexually transmitted diseases be prevented?
Answer:
Prevention of sexually transmitted diseases requires awareness and responsible behaviour. Individuals should practice safe sex and use condoms consistently, as they provide significant protection against many STDs. Avoiding multiple sexual partners and maintaining mutually faithful relationships also reduce infection risk. Regular medical check-ups and early diagnosis help in timely treatment. Using sterilized needles and screened blood during transfusions prevents the spread of infections such as HIV and hepatitis-B. Public education programmes and reproductive health awareness campaigns play a vital role in reducing the incidence of sexually transmitted diseases in society.
13. What is infertility? Mention its causes.
Answer:
Infertility is the inability of a couple to conceive despite regular unprotected sexual intercourse for a prolonged period. It may result from physical, congenital, hormonal, immunological, or psychological factors in either partner. In males, low sperm count, poor sperm motility, or reproductive tract disorders may cause infertility. In females, hormonal imbalances, ovulation disorders, blocked fallopian tubes, or uterine abnormalities may be responsible. Stress, lifestyle factors, infections, and age can also contribute to infertility. Modern medical technologies have provided several treatment options that help infertile couples achieve parenthood.
14. What are Assisted Reproductive Technologies (ART)?
Answer:
Assisted Reproductive Technologies (ART) are medical techniques used to help infertile couples achieve pregnancy. These technologies involve handling gametes or embryos under controlled laboratory conditions. ART procedures overcome barriers to natural fertilization and increase the chances of conception. Common ART methods include In Vitro Fertilization (IVF), Zygote Intrafallopian Transfer (ZIFT), and Gamete Intrafallopian Transfer (GIFT). These techniques have helped millions of couples worldwide who face infertility problems. ART requires specialized medical facilities and expert supervision, making it one of the most significant advancements in reproductive healthcare.
15. Explain IVF or test-tube baby technique.
Answer:
In Vitro Fertilization (IVF) is an assisted reproductive technology used to treat infertility. In this technique, mature eggs are collected from the female and fertilized with sperms in a laboratory outside the body. The resulting embryo is cultured for a few days and then transferred into the uterus for further development. Since fertilization occurs outside the body, IVF is commonly known as the test-tube baby technique. IVF is useful when natural fertilization is difficult due to blocked fallopian tubes, low fertility, or other reproductive disorders. It has provided successful parenthood opportunities to many infertile couples.
16. Differentiate between ZIFT and GIFT.
Answer:
ZIFT (Zygote Intrafallopian Transfer) and GIFT (Gamete Intrafallopian Transfer) are assisted reproductive technologies used in infertility treatment. In ZIFT, fertilization occurs outside the body through IVF, and the resulting zygote or early embryo is transferred into the fallopian tube. In GIFT, male and female gametes are directly transferred into the fallopian tube, where fertilization occurs naturally inside the body. ZIFT is useful when fertilization outside the body is possible, while GIFT is preferred when the female has a healthy reproductive tract but faces fertility issues. Both techniques increase the chances of successful conception.
17. What is amniocentesis? Why is it discouraged?
Answer:
Amniocentesis is a prenatal diagnostic technique in which a small sample of amniotic fluid surrounding the fetus is collected and analyzed. It helps detect chromosomal abnormalities, genetic disorders, and certain developmental defects in the fetus. Although medically useful, amniocentesis was widely misused for determining the sex of the unborn child. This led to female foeticide and an imbalance in the sex ratio. To prevent such misuse, prenatal sex determination through amniocentesis has been legally prohibited in India. Therefore, the technique should be used only for legitimate medical purposes and not for gender selection.
18. Why are condoms considered an effective contraceptive method?
Answer:
Condoms are among the most effective and widely accepted contraceptive methods because they provide dual protection. They prevent pregnancy by stopping sperm from entering the female reproductive tract and also protect against sexually transmitted diseases, including HIV/AIDS. Condoms are inexpensive, easily available, non-invasive, and free from hormonal side effects. They can be used without medical supervision and are suitable for both family planning and disease prevention. Their ease of use and effectiveness make them one of the most recommended methods for promoting reproductive health and responsible sexual behaviour.
19. How does reproductive health education benefit adolescents?
Answer:
Reproductive health education provides adolescents with accurate knowledge about puberty, reproduction, contraception, hygiene, and sexually transmitted diseases. It helps them understand physical and emotional changes during adolescence and encourages responsible decision-making. Such education reduces misconceptions, promotes healthy relationships, and prevents risky behaviour. Awareness about contraception and disease prevention lowers the chances of unwanted pregnancies and STDs. It also fosters respect for gender equality and personal responsibility. Therefore, reproductive health education is an important tool for developing informed, healthy, and socially responsible young individuals.
20. Discuss the role of awareness in maintaining reproductive health.
Answer:
Awareness plays a crucial role in maintaining reproductive health by helping individuals make informed choices regarding reproduction and family planning. Knowledge about contraception, sexually transmitted diseases, maternal healthcare, and infertility treatments improves overall reproductive well-being. Awareness programmes encourage safe sexual practices, regular medical check-ups, and early treatment of reproductive disorders. They also help reduce social stigma associated with reproductive health issues and promote gender equality. Educated and informed individuals are better equipped to protect their health and contribute to healthier families and communities. Hence, awareness is one of the most effective strategies for achieving reproductive health goals.