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Formula Sheet

Human Health and Disease

ICSE · Class 12 · Biology

All formulas from Human Health and Disease in ICSE Class 12 Biology. Key equations, constants, and identities for board exam preparation.

60 questions36 flashcards10 formulas

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A detailed flowchart illustrating the complex life cycle of the Plasmodium parasite, involving both human and female Anopheles mosquito hosts, highlighting key stages like sporozoites, merozoites, gam
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10 Formulas · 2 Sections

Formulas

Innate: non-specific, no memory — physical (skin, mucus), physiological (HCl, lysozyme), cellular (NK cells, phagocytes), cytokine (interferons)

Acquired Active Natural: after natural infection; long-lasting; memory cells formed

Acquired Active Artificial: vaccination; long-lasting; memory cells formed (Edward Jenner, 1796)

Acquired Passive Natural: colostrum IgA from mother → neonate; short-lived; no memory

Acquired Passive Artificial: anti-serum/antitoxin injection (anti-tetanus); immediate but short-lived

Uncontrolled division due to loss of contact inhibition

Benign: encapsulated, localised, does NOT metastasise

Malignant: invasive, METASTASISES via blood/lymph

Types: Carcinoma (epithelial) | Sarcoma (connective) | Lymphoma (lymphoid) | Leukaemia (blood)

Carcinogens: tobacco (lung cancer), UV radiation (skin cancer), asbestos, HPV/EBV (viruses)

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Frequently Asked Questions

What are the important topics in Human Health and Disease for ICSE Class 12 Biology?
Key topics in Human Health and Disease include Classification of Human Diseases, Malaria Life Cycle, HIV Replication Cycle. These are the concepts ICSE Class 12 examiners draw on most — study them first, then practise related questions.
How to score full marks in Human Health and Disease — ICSE Class 12 Biology?
Understand the core concepts first, then work through the 60 practice questions available for this chapter. Revise formulas and definitions regularly, and use flashcards for quick recall before the exam.
How many formulas are in Human Health and Disease?
Human Health and Disease has 10 key formulas. Write each formula at least 3 times and understand the derivation for better retention.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

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All 15 chapters — ICSE Class 12 Biology Formula Sheet

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