What is being taught lesson by lesson:
- Communicable diseases.
- Viral diseases.
- Bacterial diseases.
- Fungal diseases.
- Protist diseases with a focus on malaria.
- Natural human defenses against diseases.
- Drug discovery and development.
Key Terms for this topic (Tier 3 vocabulary)
Pathogen – communicable – non-communicable – cardiovascular – stent – virus – bacteria – protozoa – fungus – salmonella – vaccination – immunity – antibodies – phagocytosis – antibiotics – placebo – double-blind trial – antibiotic resistance.
Infection & Response
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What everyone needs to know:
Infections diseases (communicable) are spread by the 4 pathogens. Bacteria, Virus, Protists Fungi. There microorganisms can be spread by contact, air or water. Viruses live and reproduce in cells which damage them whereas bacteria produce toxins that damage cells and make us feel unwell.
You need to be aware of how our bodies prevent pathogens from entering the body and things that we can do to reduce the chances of infection.
You need to understand a variety of diseases such as:
- (VIRUS) measles, HIV, TMV
- (BACTERIA) salmonella, gonorrhoea,
- (FUNGAL) rose black spot,
- (PROTIST) malaria
You need to understand the process of how vaccines work as well as how antibiotics and painkillers can be used. It is very important to understand why antibiotics should never be used to overcome a virus.
The final process is the complicated steps involved in discovering, developing and testing new drugs. Know and understand the steps in each stages and the importance. Know how why there is a placebo and double blind trials. Be aware of lessons from the past such as Thalidomide.
Extra topics needed for the Higher papers:
In this topic, there is nothing extra for the higher papers, the questions will just be more challenging.