Chapter 28 of 41
Revision Notes
Human Diseases — Revision Notes
Telangana Open School (TOSS) · Class 12 · Biology
Human Diseases revision notes for Telangana Open School (TOSS) Class 12 Biology: 4 topics in quick points. Includes Types of Diseases, Communicable.
48 questions30 flashcards5 concepts
Interactive on Super Tutor
Studying Human Diseases? Get the full interactive chapter.
Quizzes, flashcards, AI doubt-solver and a step-by-step study plan — built for revision notes and more.
Free trial, no card needed.
Key Topics to Revise
1
Types of Diseases
- Disease is any condition that disrupts normal body function.
- Two main types: Congenital (present at birth) and Acquired (develop during life).
- Acquired diseases are further divided into communicable and non-communicable.
2
Communicable Diseases and Transmission
- Caused by pathogens like bacteria, viruses, protozoa, fungi, and worms.
- Spread through direct contact (touch, droplets, animal bites) or indirect means (vectors, water, air, objects).
- Vectors like mosquitoes and houseflies carry pathogens from host to host.
3
Major Infectious Diseases
- Influenza: Caused by virus, spreads via droplets, symptoms include fever, cough, body ache.
- Measles: Viral, highly contagious, causes rashes and fever.
- Polio: Viral, affects nervous system, can cause paralysis.
4
Non-Communicable Diseases
- Degenerative diseases: Due to organ malfunction, e.g., heart failure.
- Deficiency diseases: Caused by lack of nutrients, e.g., anemia (iron), beriberi (vitamin B1).
- Allergies: Overreaction of immune system to harmless substances like dust or pollen.
Get complete notes with diagrams and examples
Full NotesKey Concepts
A disease is any conditionThese are infectious diseases caused byThese do not spread between peoplePathogens are diseaseCancer is the uncontrolled growth
Frequently Asked Questions
What are the important topics in Human Diseases for Telangana Open School (TOSS) Class 12 Biology?
Key topics in Human Diseases include Types of Diseases, Communicable Diseases and Transmission, Major Infectious Diseases, Non-Communicable Diseases. Study these first, then practise questions on each for the Telangana Open School (TOSS) Class 12 board exam.
How should I revise Human Diseases for the Telangana Open School (TOSS) Class 12 board exam?
Learn the core ideas first, then work through the 48 practice questions on Human Diseases. Revise definitions regularly and use flashcards for quick recall before the exam.
Sources & Official References
Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.
More resources for Human Diseases
For serious students
Get the full Human Diseases chapter — start free.
Quizzes, flashcards, an AI doubt solver and a study plan for Telangana Open School (TOSS) Class 12 Biology. Free to start, no card needed.