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  • Last Modified 16-06-2023

NCERT Solutions for Class 12 Biology Chapter 8 Human Health and Diseases


NCERT Solutions for Class 12 Biology Chapter 8 Human Health and Diseases: Referring to NCERT Solutions is crucial for students who desire to pursue medicine after Class 12. Students can use the NCERT Solutions for Class 12 Biology Chapter 8 – Human Health and Diseases as a helpful study aid to perform well in exams. Building a solid basis for topics can help students perform well in the NEET exams. The student’s performance in NEET and other medical competitive exams will improve if they fully comprehend this chapter.

CBSE Class 6 Chapter 8 talks about Bacterial Diseases, Viral Diseases, Malaria and its Symptoms, Pathogens – Spread and Control, Anthrax, Third Line of Defence, Vaccines, Types of Vaccines and many more. Embibe offers a set of 400+ questions for all the sub-topics involved in chapter 8. Students must definetely practice all the questions provided by Embibe to score best marks. Keep reading to find out NCERT solutions for Class 12 Biology chapter 8.

NCERT Solutions for Class 12 Biology Chapter 8: Important Topics

Biology is one of the most interesting and important subjects for the students who are willing to pursue their careers in the field of medicine. Human Health and Diseases lays a special focus on the most common diseases and also about the types of vaccines. As students go deeper into the topics, it gets interesting to learn. Students will develop the ability to understand the nature of questions being asked in the exam.

All the solutions of the Human Health and Diseases topic provided by Embibe are framed based on the latest syllabus. Students can practice the questions for free at Embibe and score maximum marks in the final exams. Embibe also provides NCERT 3D Videos, NCERT Exemplars, Embibe Explainers, etc., for free.

Below-mentioned are the list of important topics from Class 12 Biology chapter 8 Human Health and Diseases.

S.NoTopic Name
1Common Diseases in Humans
3Acquired Immunodeficiency Syndrome (AIDS)
5Drug and Alcohol Abuse

NCERT Solutions for Class 12 Biology Chapter 8: Points to Remember

Students can find the important points to be remembered related to the Human Health and Diseases chapter as mentioned below.

  • Health: Health is not just the absence of disease, but is a state of complete physical, mental, social and psychological well-being.
  • Disease: Diseases like typhoid, cholera, pneumonia, fungal infections of skin, malaria and many others are a major cause of distress to human beings
  • Infectious Diseases:
    (i) Vector-borne diseases like malaria, especially the malignant malaria caused by Plasmodium falciparum, if not treated, may prove fatal
    (ii) Besides personal cleanliness and hygiene, public health measures like proper disposal of waste, decontamination of drinking water, control of vectors like mosquitoes and immunisation are very helpful in preventing these diseases.
  •  Immune System: Our immune system plays a major role in preventing the diseases when we are exposed to pathogens.
  •  AIDS: (i) AIDS caused by the Human Immunodeficiency Virus (HIV) is fatal but can be prevented if certain precautions are taken.
    (ii) HIV infects the helper T-lymphocyte (TH) that bears the CD4 receptor site
  • Cancer: (i) All cancers are characterised by the uncontrolled growth and division of cells.
    (ii) The malignant tumours grow very rapidly, invading and damaging the surrounding normal tissues.
    (iii) The spread of cancerous cells to distant sites is termed metastasis.
    (iv) Many cancers are curable if detected early and appropriate therapeutic measures are taken

NCERT Solutions for Class 12 Biology: All Chapters

Students can find the detailed NCERT Class 12 Biology solutions for all chapters as provided below for your reference:

Chapter 1 – Reproduction in Organisms
Chapter 2 – Sexual Reproduction in Flowering Plants
Chapter 3 – Human Reproduction
Chapter 4 – Reproductive Health
Chapter 5 – Principles of Inheritance and Variation
Chapter 6 – Molecular Basis of Inheritance in Genetics
Chapter 7 – Evolution
Chapter 9 – Strategies for Enhancement in Food Production
Chapter 10 – Microbes in Human Welfare
Chapter 11 – Biotechnology Principles and Processes
Chapter 12 – Biotechnology and Its Applications
Chapter 13 – Organisms and Populations
Chapter 14 – Ecosystem
Chapter 15 – Biodiversity and Conservation
Chapter 16 – Environmental Issues
Chapter 17 – Breathing and Exchange of Gases


Q1. Where can I download NCERT Solutions for Class 12 Biology Chapter 8?

Ans. NCERT Solutions for Class 12 Biology Chapter 8 are prepared by the top academic experts at Embibe as per the CBSE guidelines. You can download the same from here.

Q2. What are the five types of cancer mentioned in Class 12 Biology?

Ans. The major types of cancer are carcinoma, sarcoma, melanoma, lymphoma, and leukaemia. Carcinomas — the most commonly diagnosed cancers — originate in the skin, lungs, breasts, pancreas, and other organs and glands.

Q3. How many exercises are there in NCERT Solutions for Class 12 Biology Chapter 8?

Ans. A list of all the exercises of NCERT Solutions for Class 12 Biology Chapter 8 PDF is given below: Common Diseases In Humans, Immunity, AIDS, Cancer and Drug and Alcohol Abuse.

Q4. Where can I download NCERT Solutions for Class 12 Biology All Chapters?

Ans. NCERT Solutions for Class 12 Biology (All Chapters), can be downloaded from this page of Embibe.

Q5. What are the two types of immunity mentioned in Class 12 Biology?

Ans. The ability of our body to fight disease-causing organisms, conferred by the immune system, is called immunity. There are two types of immunity, viz. innate immunity and acquired immunity.

Reduce Silly Mistakes? Practice Unlimited Class 12 NCERT Biology Questions With Hints & Solutions