Human Health and Disease — Class 12 CBSE Biology revision notes
A 6-page visual revision sheet for Human Health and Disease, written for Class 12 CBSE Biology. Formulas, diagrams and the traps that cost marks, laid out to be read the night before rather than the term before. Free, and it opens inside CapCompass.
Page 1 as PDF
Human Health and Disease in one look
a pathogen picks a tissue, a route, and a set of symptoms that follow from both
Pathogens and the diseases they cause
- Typhoid: bacterium Salmonella typhi, spread through contaminated food and water
- Common cold: Rhinovirus, infects the nose and airway but not the lungs, spreads through droplets and contact
- Malaria: Plasmodium, a protozoan, transmitted by the bite of an infected female Anopheles mosquito
- Amoebiasis: Entamoeba histolytica, a protozoan, spread through contaminated food and water
- Ascariasis: Ascaris, a roundworm, spread through contaminated food, water and soil
- Ringworm: dermatophytic fungi, spread by contact with an infected person, animal, or shared towels and clothing
Malaria, in a little more detail
- Plasmodium is injected into the bloodstream when an infected female Anopheles mosquito bites, multiplies first inside liver cells, then goes on to infect red blood cells
- the classic recurring fever of malaria is tied to the rupture of infected red blood cells, which releases haemozoin, not to the mosquito bite itself, which is only when the infection begins
- Plasmodium falciparum causes the most severe, potentially fatal form of the disease
Page 1 of 6. The full sheet, all 6 pages, opens free in the app.
What this Human Health and Disease sheet covers
- Pathogens and the diseases they cause
- Typhoid
- Common cold
- Malaria
- Amoebiasis
- Ascariasis
- Ringworm
- Pathogens, sorted by kind
- Malaria, in a little more detail
- Innate immunity
- Acquired immunity
- Active immunity vs Passive immunity
- Active immunity
- Passive immunity
- One infection, one antibody response
- Antibodies and vaccination
- Allergies and autoimmunity
- Immunity, sorted by source
- HIV and AIDS
- Does this actually spread HIV?
- Cancer
- Benign tumour vs Malignant tumour
- Benign
- Malignant
- Drug and alcohol abuse
- Prevention and help
- Recognise the pressure
- Get the facts
- Ask for help
- Watch for warning signs
- Traps that cost marks
- Tricks that save time
How CapCompass uses this sheet
These notes are not a standalone PDF. CapCompass plans Biology chapter by chapter against your real exam dates and free hours, and when the plan reaches Human Health and Disease the sheet opens inside the study block itself — at the page covering the sub-topic that block is on, with the timer still running. Revision arrives at the moment the plan says revise, instead of having to be gone looking for.
More Biology Class 12 revision notes
- Biodiversity and Conservation
- Biotechnology and its Applications
- Biotechnology: Principles and Processes
- Ecosystem
- Evolution
- Human Reproduction
- Microbes in Human Welfare
- Molecular Basis of Inheritance
- Organisms and Populations
- Principles of Inheritance and Variation
- Reproductive Health
- Sexual Reproduction in Flowering Plants