These Solutions are part of NCERT Solutions for Class 12 Biology. Here we have given NCERT Solutions for Class 12 Biology Chapter 4 Reproductive Health
Question 1.
What do you think is the significance of reproductive health in a society?
Solution:
Significance of reproductive health in society are:
Question 2.
Suggest the aspects of reproductive health which need to be given special attention in the present scenario.
Solution:
Providing medical facilities and care to the problems like menstrual irregularities, pregnancy related aspects, delivery, medical termination of pregnancy, STDs, birth control, infertility. Post-natal child maternal management is another important aspect of the reproductive and child health care programme.
Question 3.
Is sex education necessary in schools? Why?
Solution:
Yes, sex education is necessary for schools because:
Question 4.
Do you think that reproductive health in our country has improved in the past 50 years? If yes, mention some such areas of improvement.
Solution:
The reproductive health in our country has improved in the last 50 years. Some areas of improvement are :
Question 5.
What are the suggested reasons for the population explosion?
Solution:
Question 6.
Is the use of contraceptives justified? Give reasons.
Solution:
Yes, the use of contraceptives is justified: To overcome the population growth rate, contraceptive methods are used. It will help in bringing birth rate down & subsequently curb population growth. With the rapid spread of HIV/ AIDS in the country, there is now a growing realization about the need to know about contraception & condoms.
Question 7.
Removal of gonads cannot be considered as a contraceptive option. Why?
Solution:
Removal of gonads not only stops the production of gametes but will also stop the secretions of various important hormones, which are important for bodily functions. This method is irreversible and thus, can not be considered as a contraceptive method.
Question 8.
Amniocentesis for sex determination is banned in our country. Is this ban necessary? Comment.
Solution:
Amniocentesis is a prenatal diagnostic technique to find out the genetic disorders and metabolic disorders of the foetus. Unfortunately, the useful technique of amnio-centesis had been misused to kill the normal female foetuses as it could help detect the sex of foetus also. Hence, this technique is now banned in our country. This ban is necessary as this technique was promoting female foeticide in our country.
Question 9.
Suggest some methods to assist infertile couples to have children.
Solution:
If the couples are enabled birth to the children and corrections are not possible, the couples could be assisted to have children through certain special techniques, commonly known as Assisted Reproductive Technologies (ART). Some methods are given as:
1. In Vitro Fertilization (IVF): In this method, ova from the female and the sperm from the male are collected and induced to form a zygote under simulated conditions in the laboratory. This process is called In Vitro Fertilization (IVF). Some method is given as follows:
2. Gamete Intra Fallopian Transfer (GIFT): It is the transfer of an ovum collected from a donor into the fallopian tube 8 another female who cannot produce one, but can provide a suitable environment for fertilization and further development of the embryo.
3. Intra Cytoplasmic Sperm Injection (ICSI) : It is a procedure to form an embryo HI* the laboratory by directly injecting the sperm into an ovum.
4. Artificial Insemination (AI): In this method, the semen collected either from the husband or a healthy donor is artificially introduced into the vegina or into the uterus (Intra Uterine Insemination, IUI). This technique is used in cases where the male is unable to inseminate sperms in the female reproductive tract or due to very low sperm counts in the ejaculation.
5. Host Mothering: In this process, the embryo is transferred from the biological mother to a surrogate mother. The embryo then develops till it is fully developed or partially developed. It is then transferred to the biological mother or into any other. This technique is useful for females in which embryo forms but is not able to develop.
Question 10.
What are the measures one has to take to prevent contracting STDs?
Solution:
Diseases or infections which are transmitted through sexual intercourse are collectively called sexually transmitted diseases (STDs) or reproductive tract infections (RT), e.g., gonorrhea, syphilis, genital herpes, AIDS, etc. The measures that one has to take to prevent from contracting STDs are:
Question 11.
State True/False with an explanation.
Solution:
Question 12.
State True/False with an explanation.
(a) Abortions could happen spontaneously too. (True/False)
Answer:
False, Abortion does not happen under normal conditions. It happens accidentally or under the will of Parents.
(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, Sterility always does not occur due to females sometimes. Males are also responsible for this.
(c) Complete lactation could help as a natural method of contraception. (True/False)
Answer:
True, the Menstrual cycle does not occur after parturition which can act as natural
contraception but this method is functional for a period of six months from parturition.
(d) Creating awareness about sex related aspects is an effective method to improve the reproductive health of dead people. (True/False)
Answer:
True, this creates better reproductive health among people.
We hope the NCERT Solutions for Class 12 Biology Chapter 4 Reproductive Health help you. If you have any query regarding NCERT Solutions for Class 12 Biology Chapter 4 Reproductive Health, drop a comment below and we will get back to you at the earliest.
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