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GCSE level School biology notes: Communicable diseases and risk factors and prevention

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Communicable Diseases - one person can infect another - examples explained, transmission, treatments, reduction, prevention

Doc Brown's GCSE level biology exam revision study notes:  What is a communicable disease?   What is a vector? How can we minimise the spread of communicable diseases? How do you prevent the spread of communicable diseases? Describe and explain examples of communicable diseases?


Sub-index for this page

(1) Introduction to communicable diseases

(2) Which types of pathogens cause communicable diseases?

(3) How are pathogens spread?

(4) Bacterial pathogen communicable diseases - salmonella, E. coli

(5) Bacterial pathogen communicable diseases - cholera, tuberculosis (TB), stomach ulcers

(6) Bacterial pathogen communicable diseases - gonorrhoea, chlamydia (STDs)

(7) Viral pathogen communicable diseases - measles, chicken pox

(8) Viral pathogen communicable diseases - HIV (aids), HPV (both sexually transmitted diseases)

(9) Viral pathogen communicable diseases - ebola, hepatitis

(10) Pathogens that attack plants

(11) Examples of protist pathogen communicable disease - malaria

(12) More on how can we prevent, or reduce the spread of communicable diseases

See also

Viruses - structure, reproduction and cell destruction

non-communicable diseases

Keeping healthy - our defences against pathogens, fighting infectious diseases, vaccination

For evaluating data, statistics, graphs and correlation see last section on Keeping healthy - non-communicable diseases - risk factors


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General HUMAN BIOLOGY revision notes

See also cell biology index above

Introduction to the organisation of cells => tissues => organs => organ systems (e.g. in humans)

Examples of surfaces for the exchange of substances in animal organisms  

See also Enzymes - section on digestion and synthesis 

The human circulatory system - heart, lungs, blood, blood vessels, causes/treatment of cardiovascular disease

Homeostasis - introduction to how it functions (negative feedback systems explained) 

Homeostasis - control of blood sugar level - insulin and diabetes 

Homeostasis - osmoregulation, ADH, water control, urea and ion concentrations and kidney function, dialysis

Homeostasis - thermoregulation, control of temperature 

The brain - what the different parts do and the dangers if damaged

An introduction to the nervous system including the reflex arc 

Hormone systems - Introduction to the endocrine system - adrenaline & thyroxine hormones 

Hormone systems - menstrual cycle, contraception, fertility treatments 

Respiration - aerobic and anaerobic in plants and animals. 

Keeping healthy - communicable diseases - pathogen infections  

Keeping healthy - non-communicable diseases - risk factors for e.g. cancers  

Keeping healthy - diet and exercise 

Keeping healthy - defence against pathogens, infectious diseases, vaccination, drugs, monoclonal antibodies

See also Culturing microorganisms like bacteria - testing antibiotics/antiseptics 

Food tests for reducing sugars, starch, proteins and lipids 

The eye - structure and function - correction of vision defects 

Optics - lens types (convex, concave, uses), experiments, ray diagrams, correction of eye defects (gcse physics)


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