NCERT Solutions for Class 12 Biology Chapter 3 Reproductive Health

Short Note:

• Reproductive health refers to a state of complete physical, mental and social well-being in all aspects of reproduction, and government programmes like RCH (Reproductive and Child Health Care) aim to create awareness among people about reproductive processes and safe practices.

• Steps to improve reproductive health include sex education in schools, awareness about reproductive organs, safe sexual practices, menstrual hygiene, and providing medical facilities and care for pregnant mothers and infants.

Short Note:

• Rapid population growth has necessitated birth control measures, broadly classified into natural methods (periodic abstinence, withdrawal), barrier methods (condoms, diaphragms), IUDs (intra-uterine devices like Copper-T), oral contraceptives (hormonal pills), and surgical methods (vasectomy in males, tubectomy in females).

• An ideal contraceptive should be user-friendly, easily available, effective, reversible, and have no or minimal side effects.

Short Note:

• MTP, or induced abortion, is legally permitted in India under specific conditions and is considered relatively safe up to 12 weeks, though it can carry health risks and ethical/social concerns if misused, particularly for sex selection.

• Sexually Transmitted Infections (STIs), such as gonorrhoea, syphilis, and HIV/AIDS, are infections transmitted through sexual contact; early detection and treatment, along with preventive practices like avoiding sex with unknown/multiple partners and using condoms, help control their spread.

Short Note:

• Infertility, the inability to conceive despite unprotected intercourse, can result from physical, congenital, hormonal or psychological causes, and can affect either partner.

• Assisted Reproductive Technologies help infertile couples have children, including IVF (in vitro fertilisation, popularly called the 'test tube baby' technique), ZIFT (transfer of zygote into the fallopian tube), GIFT (transfer of gametes into the fallopian tube), and artificial insemination.