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Explore structured advanced study materials through the CBSE Class 12 Biology Human Health and Diseases Key Points. Tailored for Class 12 learners, utilizing these Biology resources ensures thorough preparation and strengthens foundational knowledge before final CBSE evaluations.
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CBSE Class 12 Biology Human Health and Diseases Key Points. Please refer to the examination notes which you can use for preparing and revising for exams. These notes will help you to revise the concepts quickly and get good marks.
UNIT VIII - BIOLOGY IN HUMAN WELFARE
CHAPTER: 8 HUMAN HEALTH & DISEASES (KEY POINTS)
Review the key biological terms and their explanations from Chapter 8 (Human Health & Diseases) as presented in the reference table below: [1 Mark]
| S.No. | Term | Explanation |
|---|---|---|
| 1 | PMNL | Polymorpho-Nuclear Leukocytes |
| 2 | CMI | Cell Mediated Immunity |
| 3 | ELISA | Enzyme Linked Immunosorbent Assay |
| 4 | MALT | Mucosal Associated Lymphoid Tissue |
| 5 | SCID | Severe Combined Immuno Deficiency |
| 6 | NACO | National AIDS Control Organisation |
| 7 | MRI | Magnetic Resonance Imaging |
| 8 | HLA | Human Leukocyte Antigen |
| 9 | Carcinogens | Cancer causing agents. e.g., gamma rays. UV rays, dyes and lead. |
| 10 | Immunity | Resistance to infection or antigen |
| 11 | Immuno Suppressant | The chemical which supress the immunity response to antigen. |
| 12 | Interferon | The glycoproteins produced by our body cells in response to a viral |
| 13 | Incubation Period | The time period between infection and the appearance of symptoms. |
| 14 | Metastasis | The property in which the cancer cells spread to different sites through blood and develop secondary tumours. |
| 15 | Oncogene | Viral genome which causes cancer |
| 16 | Retrovirus | A virus having RNA as genetic material and forms DNA by reverse transcription and then replicate e.g., Human Immunodeficiency Virus (HIV). |
| 17 | Syndrome | Collection of disease symptoms responsible for a disorder or a disease. |
| 18 | Vaccination | Inoculation of a vaccine to stimulate production of antibodies and provide immunity for one or more disease |
Answer:
1. The table outlines key immunological, oncological, and diagnostic terms tested frequently in board examinations.
2. Each term precisely defines a core concept from human health and diseases, such as pathogen defense mechanisms, diagnostic tests, and disease pathology.
Teacher's Note:
a) Memorizing exact expansions for acronyms like ELISA, MALT, and NACO is essential for scoring in objective and short-answer questions.
b) Distinguish clearly between terms related to immunity (like CMI and PMNL) and those related to abnormal growths (like Oncogene and Metastasis).
Free study material for Biology
Free CBSE Study Guides: Class 12 Biology Chapter 07 Human Health and Diseases
Core Study Kit: Class 12 Biology Chapter 07 Human Health and Diseases
Access comprehensive study material for Chapter 07 Human Health and Diseases, including revision notes, concept maps, and high-probability questions. These resources are designed in alignment with the latest 2026 CBSE syllabus for Class 12 Biology to support effective exam preparation.
NCERT-Aligned Solutions for Chapter 07 Human Health and Diseases
Designed around the official curriculum, these study guides guarantee standard compliance. Reviewing step-by-step solutions clarifies complex sub-topics within Chapter 07 Human Health and Diseases and demystifies standard marking schemes for Biology evaluations.
Next Steps in Your Exam Preparation
For peak performance in upcoming evaluations, integrate official Biology sample papers directly into your study schedule. Follow up your revision by attempting online MCQ tests for Chapter 07 Human Health and Diseases to refine calculation speed and precision.
FAQs
Our advanced study package for Chapter 07 Human Health and Diseases includes detailed concepts, diagrams, Mind Maps, and explanation of complex topics to ensure Class 12 students learn as per syllabus for 2026 exams.
The Mind Maps provided for Chapter 07 Human Health and Diseases act as visual anchors which will help faster recall during high-pressure exams.
Yes, teachers use our Class 12 Biology resources for lesson planning as they are in simple language and have lot of solved examples.
Yes, You can download the complete, mobile-friendly PDF of the Biology Chapter 07 Human Health and Diseases advanced resources for free.
Yes, our subject matter experts have updated the Chapter 07 Human Health and Diseases material to align with the rationalized NCERT textbooks and have removed deleted topics and added new competency-based questions.