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NCERT solutions for Class 12 Biology Chapter 4 Reproductive Health

NCERT solutions for Class 12 Biology Chapter 4 Reproductive Health

Edited By Irshad Anwar | Updated on Sep 14, 2023 01:01 PM IST | #CBSE Class 12th

NCERT Solutions for Class 12 Biology Chapter 4 Reproductive Health are solved by the experts. Class 12 Biology Chapter 4 NCERT solutions will help students know the definition as per World Health Organisation (WHO). Reproductive health stands for the total well-being of the human body in all aspects of reproduction, and that includes physical, emotional, behavioural and social. Therefore, reproductive health NCERT will let students know that a society with people having physically and functionally normal reproductive organs and normal emotional and behavioural interactions among them in all sex-related aspects might be called reproductively healthy. You will find all questions and answers based on these concepts in NCERT Solutions for Class 12 Biology Chapter 4.

In order to study for the board exams, students can use these NCERT Solutions for Class 12. It provides answers in accordance with the latest CBSE Syllabus 2022–23 and the NCERT Textbook. Additionally, these answers are available for free download in PDF format. In reproductive health class 12, students will get the answers to all the questions. Using the NCERT Solutions, students will be able to prepare for the exams in a better way. Read further to know more about Class 12 Biology Chapter 4 Reproductive Health NCERT.

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According to the latest CBSE Syllabus 2023-24, this chapter has been renumbered as Chapter 3.

NCERT Solutions For Class 12 Biology Reproductive Health - PDF Download

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NCERT Solutions for Class 12 Biology Chapter 4 - Reproductive Health: Solved Exercise

Reproductive Health Class 12 Questions and Answers

Q1. What do you think is the significance of reproductive health in a society?


Reproductive health refers to complete physical, emotional, behavioral and social well being n all aspects of reproduction. The significance of reproductive health is as follows:

1. Attainment of reproductive health can possible reduces the chances of STDs such as AIDS, hepatitis, gonorrhoea etc. as a reproductively healthy society has knowledge about transmission of these diseases, th8s these can be prevented.

2. In a reproductively healthy society, people will have knowledge about birth control and family planning, thus aiding in population control.

Q2. Suggest the aspects of reproductive health which need to be given special attention in the present scenario.


The aspects of reproductive health which need to be given special attention in the present scenario are as follows:

1. Spreading of proper information about reproductive organs, STDs, AIDS etc.

2. Educating people about different kinds of birth control options, taking care of pregnant ladies, postnatal care for child and mother as well.

Reproductive Health Class 12 Solutions:

Q3. Is sex education necessary in schools? Why?


Yes, sex education is necessary to be introduced in schools. It is because the school students are adolescents and they must be taught regarding reproductive health. This is considered to be the right time for giving them information about reproductive organs, puberty, safe sexual practices and changes related to adolescence. They also are made aware of STDs and birth control measures. Therefore, providing sex education to them in schools will lead to a reproductively healthy society.

Q4. Do you think that reproductive health in our country has improved in the past 50 years? If yes, mention some such areas of improvement.


Yes, reproductive health in our country has improved in the past 50 years as India has taken some serious steps to improve reproductive health in the country.

1. Programs such as family planning started in 1951.

2. Government together with certain NGOs are creating awareness about reproductive health through audio-visual aids and print media

3. Maternal and infant mortality rate has been decreased drastically in India.

4. To stop female foeticides, amniocenteses have been banned in India.

5. Massive immunization programs for infants and children have been set up.

Reproductive Health Class 12 Questions and Answers:

Q5. What are the suggested reasons for population explosion?


Reasons for population explosions are as follows:

1. A rapid decline in death rate, maternal mortality rate and infant mortality.

2. Increase in individuals of reproductive age.

3. Due to better medical facilities, the life span of people is increasing.

4. Illiteracy causes people to be unaware of birth control measures leading to unwanted pregnancies.

Reproductive Health Class 12 Solutions

Q6. Is the use of contraceptives justified? Give reasons.


Yes, the use of contraceptives is justified these days. It is mainly because the population of India is continuously increasing. Uncontrolled growth in population is one of the major problems of the world. The growing population will make the scarcity of basic needs such as food, shelter, etc. Thus, in order to control the growth in population, the use of contraceptives becomes necessary. Various methods of contraceptive methods are available today which are very easy, safe, cost-effective and without any side effects. Therefore, fertile couples can use contraceptive methods to control the population.

Q7. Removal of gonads cannot be considered as a contraceptive option. Why?


A contraceptive is a method by which the chances of unwanted pregnancies can be reduced. Removal of gonads is not considered a contraceptive because it causes infertility along with the unavailability of hormones required for the functioning of accessory reproductive organs.

Q8. Amniocentesis for sex determination is banned in our country. Is this ban necessary? Comment.


Amniocentesis is a process that was used to find any kind of abnormalities in the foetus. However. this technique was misused to find sex of the child. Some parents used to abort their female child before being born. Thus in order to reduce female foeticides, the ban on amniocenteses is necessary.

NCERT Solutions for Class 12 Biology Chapter 4 Reproductive Health:

Q9. Suggest some methods to assist infertile couples to have children.


Infertility refers to the inability of a couple to produce their young one even after continuous unprotected sex. The factors that cause infertility can be physical, diseases, drugs, immunological, etc. There are infertility clinics that provide correct treatment to infertile couples. Some methods to assist infertile couples to have children are as follows:

1. Various assisted reproductive technologies i.e. ART methods are practiced these days. Among these, IVF (In-vitro fertilization) is very common which is followed by ET (embryo transfer). This process is also known as a test-tube baby program.

2. GIFT – Gamete intrafallopian transfer, in this process embryo from in-vivo fertilization are transferred to a recipient female which is able to carry the baby for 9 months.

3. AI – Artificial insemination, is used when the sperm count of the male partner is very low. In this process, the sperms are artificially introduced into the vagina or uterus of a recipient female

4. ICSI – Intracytoplasmic sperm injection is a method of directly injecting sperm into the ovum to form the embryo.

Class 12 Reproductive Health NCERT Solutions:

Q10. What are the measures one has to take to prevent from contracting STDs?


The measures one has to take to prevent from contracting STDs are as follows:

1. Always use condoms while having intercourse.

2. We must avoid having sex with an unknown partner or multiple partners.

3. We should maintain sex hygiene and must consult a physician if any symptoms are found.

Reproductive Health Class 12 NCERT Solutions

Q11. State True/False with explanation

(a) Abortions could happen spontaneously too. (True/False)


(a) Abortions could happen spontaneously too.

True, abortion which is medical termination of pregnancy can happen spontaneously too.

Q11. (b) Infertility is defined as the inability to produce a viable offspring and is always due to abnormalities/defects in the female partner. (True/False)


(b) Infertility is defined as the inability to produce a viable offspring and is always due to abnormalities/defects in the female partner.

False. Male partner could also be responsible for infertility.

11. (c) Complete lactation could help as a natural method of contraception. (True/False)


(c) Complete lactation could help as a natural method of contraception.

True. During complete lactation, no ovulation takes place so no menstrual cycle and no chances of fertilization.

Q11. (d) Creating awareness about sex related aspects is an effective method to improve reproductive health of the people. (True/False)


(d) Creating awareness about sex related aspects is an effective method to improve the reproductive health of the people.

True. Creating awareness about sex related aspects is an effective method to improve the reproductive health of the people.

Class 12 Biology Chapter 4 Question Answer

Q12. Correct the following statements :

(a) Surgical methods of contraception prevent gamete formation


Surgical methods of contraception do not prevent gamete formation. They act as a contraceptive by not allowing the transfer of gametes, thus preventing unwanted pregnancies.

(b) All sexually transmitted diseases are completely curable.


Some sexually transmitted diseases are completely curable if detected earlier. Aids is a sexually transmitted disease which is still incurable.

(c) Oral pills are very popular contraceptives among the rural women.


Oral pills are very popular contraceptives among the urban women.

(d) In ET techniques, embryos are always transferred into the uterus.


In the ET technique, an embryo of 8 cell stage or lesser is transferred to the fallopian tube while that of more than 8 blastomere stage is transferred to the uterus.

An insight to NCERT Solutions for Class 12 Biology Chapter 4 Reproductive Health

In, reproductive health Class 12, students will get questions-related to the steps towards health. The primary step towards Chapter 4 Biology Class 12, that is:

  • Adolescence and associated changes awareness

  • Hygienic and safe sexual practices

  • Sexually transmitted infections (STIs) including AIDS, etc awareness session.

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Reproductive Health Class 12 will let you know that providing medical facilities and care to the problems like menstrual irregularities, pregnancy-related aspects, delivery, medical termination of pregnancy, STIs, birth control, and infertility. The postnatal child and maternal management is another important aspect of the Reproductive and Child Health Care programs. The related questions and solutions are there in Reproductive Health Class 12 NCERT Solutions.

NCERT Solutions for Class 12 Biology Chapter 4

In Reproductive Health Class 12, students will also get questions related to MTP. MTP is Medical Termination of Pregnancy and it is legalized in our country. MTP is generally performed to get rid of unwanted pregnancy due to rapes, casual relationships, etc., as also in cases when the continuation of pregnancy could be harmful or even fatal to mother or foetus or both. Find the more details in solutions for Ch 4 Biology Class 12.

The reproductive health Class 12 will also provide students the questions and answers related to infertility and In Vitro Fertilization. For example, the inability to conceive or produce children even after 2 years of unprotected sexual cohabitation is called infertility. Now, there are various methods, which are available to help such couples. According to the Class 12 biology chapter 4 NCERT solutions, In Vitro fertilization followed by transfer of the embryo into the female genital tract is one such method and is commonly known as the ‘Test Tube Baby’ Programme. The question based on this concept are given in Class 12 Reproductive Health NCERT Solutions.

You can download the Reproductive Health PDF to read Class 12 biology chapter 4 question answer anytime, anywhere.

Important Topics Of NCERT Solutions For Class 12 Biology Reproductive Health:

Topics and Subtopics in Class 12 Biology NCERT Solutions for Reproductive Health:

Section Name
Topic Name
Reproductive Health
4.1Reproductive Health – Problems and Strategies
4.2Population Explosion and Birth Control
4.3Medical Termination of Pregnancy (MTP)
4.4Sexually Transmitted Diseases (STDs)
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Benefits of NCERT Solutions for Class 12 Biology Chapter 4 Reproductive Health

  • After understanding the complete Ch 4 Biology Class 12, try to attempt all the given questions in NCERT, and in case, if you face any doubt then take help from solutions for reproductive health Class 12.

  • You will get all the answers in chapter 4 biology Class 12 NCERT solutions and this will help you to score good marks in the exam.

  • Reproductive health Class 12 solutions will help you to understand the concept behind the questions and also help you to prepare for the competitive exam such as NEET (along with the 12th board exam), as NCERT is the base for both of the exams.

  • Important topics are listed in Reproductive health Class 12 NCERT.

  • Reproductive Health NCERT solutions are provided by subject experts that are easy to understand.

  • Reproductive Health Class 12 PDF can be downloaded.

  • NCERT Solutions For Class 12 Biology Reproductive Health provide basic information that everyone should know.

NCERT Solutions for Class 12 Biology: Chapter wise

NCERT Solutions for Class 12: Subjectwise

NCERT Exemplar Class 12 Solutions

Also Check NCERT Books and NCERT Syllabus here:

We Hope that you will ace your Board examination with the help of NCERT solutions for Class 12 Biology Chapter 4 Reproductive Health.

Frequently Asked Question (FAQs)

1. Which book is best for Class 12 Biology?

One of the best choices is to go with the NCERT Class 12 Biology book. After completing the NCERT books, students should go for other best books for Class 12 biology

To score well in the examination, follow the NCERT syllabus and solve the exercise given in the NCERT Book. To practice more problems, students must refer to NCERT Exemplar.

2. How to download NCERT Solutions for Class 12 Biology?

Students can download NCERT solutions by using an online webpage to PDF converter.

3. How can I study biology for class 12?

Students can follow the best preparation tips to crack the Biology exam.

4. What are the Important topics given in reproductive health class 12?

The Important topics given in reproductive health class 12 are: 

  • Reproductive Health - Problems and Strategies

  • Population Stabilisation and Birth Control

  • Medical Termination of Pregnancy (MTP)

  • Sexually Transmitted Infections (STIs)

  • Infertility

5. What kinds of questions are included in Chapter 4 of the NCERT Solutions for Class 12 Biology?

The following is a list of the types of questions found in Chapter 4 of the NCERT Solutions for Class 12 Biology:

  • Short answers

  • Long answers

  • Very long answers

  • True false questions with reasons

  • Correct the given statements


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  • Waitlist: Many schools maintain waitlists after their initial application rounds close.  If a student who secured a seat decides not to join, the school might reach out to students on the waitlist.  So, even if the application deadline has passed,  it might be worth inquiring with schools you're interested in if they have a waitlist and if they would consider adding you to it.

  • Schools with ongoing admissions: Some schools, due to transfers or other reasons, might still have seats available even after the main admission rush.  Reach out to the schools directly to see if they have any open seats in 10th grade.

  • Consider other good schools: There might be other schools in your area that have a good reputation but weren't on your initial list. Research these schools and see if they have any seats available.

  • Focus on excelling in your current school: If you can't find a new school this year, focus on doing well in your current school. Maintain good grades and get involved in extracurricular activities. This will strengthen your application for next year if you decide to try transferring again.

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Choosing Your Stream:

  • Graphic Design Focus: Consider a Bachelor's degree in Graphic Design or a design diploma. Build a strong portfolio showcasing your creative skills. Learn the basics of HTML, CSS, and JavaScript to understand web development better. Many online resources and bootcamps offer these introductory courses.

  • Coding Focus: Pursue a Computer Science degree or a coding bootcamp in India. These programs are intensive but can equip you with strong coding skills quickly. While building your coding prowess, take online courses in graphic design principles and UI/UX design.

Engineering Subjects (for a Degree):

  • Information Technology (IT): This offers a good mix of web development, networking, and database management, all valuable for web design/development roles.

  • Human-Computer Interaction (HCI): This is a specialized field that bridges the gap between design and computer science, focusing on how users interact with technology. It's a perfect choice if you're interested in both aspects.

  • Passing NIOS in October 2024 will make you eligible for NIT admissions in 2025 . NIT admissions are based on your performance in entrance exams like JEE Main, which typically happen in January and April. These exams consider the previous year's Class 12th board results (or equivalent exams like NIOS).

Here's why 2025 is more likely:

  • JEE Main 2024 Admissions: The application process for NITs through JEE Main 2024 is likely complete by now (May 2024). They consider your 2023 Class 12th marks (CBSE in this case).
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Looking Ahead (2025 Admissions):

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Yes, scoring above 99.9 percentile in CAT significantly increases your chances of getting a call from IIM Bangalore,  with your academic background. Here's why:

  • High CAT Score: A score exceeding  99.9 percentile is exceptional and puts you amongst the top candidates vying for admission. IIM Bangalore prioritizes  CAT scores heavily in the shortlisting process.

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However, the shortlisting process is multifaceted:

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Here's what you can do to strengthen your application:

  • Focus on WAT and PI: If you receive a shortlist, prepare extensively for the Written Ability Test (WAT) and Personal Interview (PI). These stages assess your communication, soft skills, leadership potential, and suitability for the program.

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Overall, with a stellar CAT score and a strong academic background, you have a very good chance of getting a call from IIM Bangalore. But remember to prepare comprehensively for the other stages of the selection process.


Yes you can appear for the compartment paper again since CBSE gives three chances to a candidate to clear his/her exams so you still have two more attempts. However, you can appear for your improvement paper for all subjects but you cannot appear for the ones in which you have failed.

I hope this was helpful!

Good Luck

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A block of mass 0.50 kg is moving with a speed of 2.00 ms-1 on a smooth surface. It strikes another mass of 1.00 kg and then they move together as a single body. The energy loss during the collision is

Option 1)

0.34\; J

Option 2)

0.16\; J

Option 3)

1.00\; J

Option 4)

0.67\; J

A person trying to lose weight by burning fat lifts a mass of 10 kg upto a height of 1 m 1000 times.  Assume that the potential energy lost each time he lowers the mass is dissipated.  How much fat will he use up considering the work done only when the weight is lifted up ?  Fat supplies 3.8×107 J of energy per kg which is converted to mechanical energy with a 20% efficiency rate.  Take g = 9.8 ms−2 :

Option 1)

2.45×10−3 kg

Option 2)

 6.45×10−3 kg

Option 3)

 9.89×10−3 kg

Option 4)

12.89×10−3 kg


An athlete in the olympic games covers a distance of 100 m in 10 s. His kinetic energy can be estimated to be in the range

Option 1)

2,000 \; J - 5,000\; J

Option 2)

200 \, \, J - 500 \, \, J

Option 3)

2\times 10^{5}J-3\times 10^{5}J

Option 4)

20,000 \, \, J - 50,000 \, \, J

A particle is projected at 600   to the horizontal with a kinetic energy K. The kinetic energy at the highest point

Option 1)


Option 2)

\; K\;

Option 3)


Option 4)


In the reaction,

2Al_{(s)}+6HCL_{(aq)}\rightarrow 2Al^{3+}\, _{(aq)}+6Cl^{-}\, _{(aq)}+3H_{2(g)}

Option 1)

11.2\, L\, H_{2(g)}  at STP  is produced for every mole HCL_{(aq)}  consumed

Option 2)

6L\, HCl_{(aq)}  is consumed for ever 3L\, H_{2(g)}      produced

Option 3)

33.6 L\, H_{2(g)} is produced regardless of temperature and pressure for every mole Al that reacts

Option 4)

67.2\, L\, H_{2(g)} at STP is produced for every mole Al that reacts .

How many moles of magnesium phosphate, Mg_{3}(PO_{4})_{2} will contain 0.25 mole of oxygen atoms?

Option 1)


Option 2)

3.125 × 10-2

Option 3)

1.25 × 10-2

Option 4)

2.5 × 10-2

If we consider that 1/6, in place of 1/12, mass of carbon atom is taken to be the relative atomic mass unit, the mass of one mole of a substance will

Option 1)

decrease twice

Option 2)

increase two fold

Option 3)

remain unchanged

Option 4)

be a function of the molecular mass of the substance.

With increase of temperature, which of these changes?

Option 1)


Option 2)

Weight fraction of solute

Option 3)

Fraction of solute present in water

Option 4)

Mole fraction.

Number of atoms in 558.5 gram Fe (at. wt.of Fe = 55.85 g mol-1) is

Option 1)

twice that in 60 g carbon

Option 2)

6.023 × 1022

Option 3)

half that in 8 g He

Option 4)

558.5 × 6.023 × 1023

A pulley of radius 2 m is rotated about its axis by a force F = (20t - 5t2) newton (where t is measured in seconds) applied tangentially. If the moment of inertia of the pulley about its axis of rotation is 10 kg m2 , the number of rotations made by the pulley before its direction of motion if reversed, is

Option 1)

less than 3

Option 2)

more than 3 but less than 6

Option 3)

more than 6 but less than 9

Option 4)

more than 9

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