Reproductive Health NCERT Solutions for Class 12 Biology Chapter 4 with Answers

We have compleed the NCERT/CBSE Solutions chapter-wise for Class 12 Biology Chapter 4 Reproductive Health with Answers by expert subject teacher for latest syllabus and examination. Prepare effectively for the exam taking the help of the Class 12 Biology NCERT Solutions PDF free of cost from here. Students also can take a free NCERT Solutions of Reproductive Health. Each question has right answer Solved by Expert Teacher. Download the Biology NCERT Solutions with Answers for Class 12 Biology Pdf and prepare to help students understand the concept very well.

NCERT Solutions for Class 12 Biology

Page No. 66

Exercises

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

Answer: Reproductive health in a society is very important as it ensures that all individuals in the reproductive age group are fertile and able to carry on human race further. Since reproductive health involves an all around health of the species be it emotionally ,physically or behavioural its helps to free the society from many negative aspects like uncontrolled population. sexual abuses , sex related crimes. As people are well aware and educated it helps to ward off the myths and misconception and helps prevent STDs and AIDS . Thus it helps to build up a socially responsible and healthy society.

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

Answer: Reproductive health is the total wellbeing in all aspects of reproduction. The aspects which have to be given special attention in the present scenarios are

(1) Counselling and creating awareness among people, especially the youth, about various aspects of reproductive health, such as sexually transmitted diseases, available contraceptive methods, case of pregnant mothers, adolescence, etc.

(2) Providing support and facilities such as medical assistance to people during pregnancy, STDs, abortions, contraceptives, infertility, etc. for building a reproductively healthy society

Q3. Is sex education necessary in schools? Why?

Answer: Yes, sex education is necessary in schools. It is because of the following reasons:

  • To impart apt and necessary information to students in order to save them from misconceptions and myths about sex-related topics
  • Provides appropriate knowledge about adolescence, reproductive organs and related concepts
  • Creates awareness amongst students about the need for hygienic and safe sexual practices, sexually transmitted diseases. This helps students, specifically those in adolescence to lead a healthy, reproductive life

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.

Answer: The reproductive health in our country has improved in the last 50 years. Some areas of improvement are :

  • Massive child immunization.
  • Increasing use of contraceptives.
  • Better awareness about sex related matters.
  • Increased number of medically assisted deliveries and better post-natal care leading to decreased maternal and infant mortality rates.
  • Increased number of couples with small families.
  • Better detection and cure of STDs and overall increased medical facilities for all sex related problems.

Q5. What are the suggested reasons for population explosion?

Answer: The human population is increasing day by day, leading to population explosion. It is because of the following two major reasons.

(a) Decreased death rate

(b) Increased birth rate and longevity

The death rate has decreased in the past 50 years. The factor leading to decreased death rate and increased birth rate are control of diseases, awareness and spread of education, improvement in medical facilities, ensured food supply in emergency situation, etc. All this has also resulted in an increase in the longevity of an individual.

Q6. Is the use of contraceptives justified? Give reasons

Answer: Yes, the use of contraceptives is absolutely justified. The human population is increasing tremendously. Therefore, to regulate the population growth by regulating reproduction has become a necessary demand in the present times. Various contraceptive devices have been devised to reduce unwanted pregnancies, which help in bringing down the increased birth rate and hence, in checking population explosion.

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

Answer: The removal of the gonads cannot be regarded as a contraceptive option because it will result in infertility for the rest of one’s life. It will also halt the secretion of several key hormones required for body function.

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

Answer: Amniocentesis is a pre-natal diagnostic technique which is used to determine the sex and the metabolic ailments of the developing foetus in the uterus of the mother which is carried out by observing chromosomal patterns. The method was deployed to determine the presence of any genetic disorder in the foetus. But unfortunately, this procedure has been misused for gender detection before the birth of the child hence leading to female foeticide. Hence, to prevent this practice, ban on the usage of amniocentesis for sex determination is necessary.

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

Answer: Some methods to assist infertile couples to have children are:

  • Test tube baby programme: The ova from the wife/donor (female) and sperms from the husband/donor (male) are collected and are induced to form zygote under simulated conditions in the laboratory. Then, zygote produced is then transferred into the fallopian tube of a normal female.
  • Gamete Intra fallopian transfer (GIFT): Transfer of an ovum collected from a donor into the fallopian tube of another female who cannot produce ova, but can provide suitable environment for fertilisation.
  • Intra cytoplasmic sperm injection (ICSI): A sperm is directly injected into the ovum.
  • Artificial insemination (AI): The semen collected either from the husband or a healthy donor is artificially introduced either into the vagina or into the uterus of the female.

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

Answer: (i) Avoiding sex with unknown partner /multiple partners.
(ii) Always use condoms during intercourse.
(iii) In case of doubt, go for medical professional for early detection and get complete treatment if diagnosed with disease.
(iv) Education & counselling of persons at risk on ways to adopt safer sexual behaviour.

Q11. State True/False with explanation

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

Answer: True, due to some internal factors abortions could happen spontaneously too.

(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)

Answer:False, Infertility is defined as the inability of the couple to produce baby even after unprotected sexual co-habitation and it might occur due to abnormalities/defects in either male or female or both.

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

Answer: False, Complete lactation is a natural method of contraception but it is limited till lactation period, which continues till six months after parturition.

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

Answer: True, Creating awareness about sex related aspects provides necessary information about reproductive health.

Q12. Correct the following statements:

(a) Surgical methods of contraception prevent gamete formation.

Answer: Surgical methods of contraception prevent the flow of gamete during intercourse.

(b) All sexually transmitted diseases are completely curable.

Answer: All sexually transmitted diseases are not completely curable.

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

Answer: Oral pills are very popular contraceptives among the urban women

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

Answer: In E.T. technique, 8 celled embryos are transferred into the fallopian tube while more than 8 celled embryos are transferred into the uterus.

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