NCERT Solutions for Class 12 Biology Human health and disease



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NCERT Solutions for Class 12 Biology Human health and disease Class 12 Biology book solutions are available in PDF format for free download. These ncert book chapter wise questions and answers are very helpful for CBSE board exam. CBSE recommends NCERT books and most of the questions in CBSE exam are asked from NCERT text books. Class 12 Biology chapter wise NCERT solution for Biology all the chapters can be downloaded from our website and myCBSEguide mobile app for free.

Download NCERT solutions for Human health and disease as PDF.

NCERT Solutions for Class 12 Biology Environmental issues

NCERT Class 12 Biology Chapter wise Solutions

  • 1 – Reproduction in Organism
  • 2 – Sexual Reproduction in Flowering Plants
  • 3 – Human Reproduction
  • 4 – Reproductive Health
  • 5 – Principles of Inheritance and Variation
  • 6 – Molecular Basis of Inheritance
  • 7 – Evolution
  • 8 – Human Health and Disease
  • 9 – Strategies for Enhancement in Food Production
  • 10 – Microbes in Human Welfare
  • 11 – Biotechnology: Principles and Processes
  • 12 – Biotechnology and its Applications
  • 13 – Organisms and Populations
  • 14 – Ecosystem
  • 15 – Biodiversity and Conservation
  • 16 – Environmental Issues

NCERT Solutions for Class 12 Biology Human health and disease

1. What are the various public health measures, which you would suggest as safeguard against infectious diseases?
2. In which way has the study of biology helped us to control infectious diseases?
3. How does the transmission of each of the following diseases take place?
(a) Amoebiasis
(b) Malaria
(c) Ascariasis
(d) Pneumonia
4. What measure would you take to prevent water-borne diseases?
5. Discuss with your teacher what does ‘a suitable gene’ means, in the context of DNA vaccines.
6. Name the primary and secondary lymphoid organs.
7. The following are some well-known abbreviations, which have been used in this chapter. Expand each one to its full form:
(a) MALT
(b) CMI
(c) AIDS
(d) NACO
(e) HIV
8. Differentiate the following and give examples of each:
(a) Innate and acquired immunity
(b) Active and passive immunity

9. Draw a well-labelled diagram of an antibody molecule.
10. What are the various routes by which transmission of human immunodeficiency virus takes place?
11. What is the mechanism by which the AIDS virus causes deficiency of immune system of the infected person?
12. How is a cancerous cell different from a normal cell?
13. Explain what is meant by metastasis.
14. List the harmful effects caused by alcohol/drug abuse.
15. Do you think that friends can influence one to take alcohol/drugs? If yes, how may one protect himself/herself from such an influence?
16. Why is that once a person starts taking alcohol or drugs, it is difficult to get rid of this habit? Discuss it with your teacher.
17. In your view what motivates youngsters to take to alcohol or drugs and how can this be avoided?

NCERT Solutions for Class 12 Biology

NCERT Solutions Class 12 Biology PDF (Download) Free from myCBSEguide app and myCBSEguide website. Ncert solution class 12 Biology includes text book solutions from Biology Book. NCERT Solutions for CBSE Class 12 Biology have total 16 chapters. 12 Biology NCERT Solutions in PDF for free Download on our website. Ncert Biology class 12 solutions PDF and Biology ncert class 12 PDF solutions with latest modifications and as per the latest CBSE syllabus are only available in myCBSEguide

CBSE app for Class 12

To download NCERT Solutions for class 12 Physics, Chemistry, Biology, History, Political Science, Economics, Geography, Computer Science, Home Science, Accountancy, Business Studies and Home Science; do check myCBSEguide app or website. myCBSEguide provides sample papers with solution, test papers for chapter-wise practice, NCERT solutions, NCERT Exemplar solutions, quick revision notes for ready reference, CBSE guess papers and CBSE important question papers. Sample Paper all are made available through the best app for CBSE students and myCBSEguide website.

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