communicable diseases Flashcards
what are pathogens
microorganisms that enter the body and cause disease
what are bacteria
very small cells which can reproduce rapidly inside your body
what can bacteria do
makes you feel ill by producing toxins that damage your cells and tissues
Are viruses cells
no they are tiny
what are protists
eukaryotes normally single celled
what are parasites
types of protists that live or not inside other organisms and caused them damage
what is the body of fungi called
hyphee 
what are the three ways pathogens can be spread
water, air and direct contact
what is a vaccination
involves injecting small amounts of dead or inactive pathogens of the virus which carry antigens and cause the body to produce antibodies to attack them
what are the pros of vaccinations
help to control communicable diseases
can prevent epidemics
what are the cons of vaccinations
they do not always work
sometimes you can have a bad reaction to a vaccine
what are painkillers
drugs that relieve pain but don’t actually kill the pathogens, just reduce symptoms
give an example of a painkiller
aspirin
what are antibiotics
they prevent growth of the bacteria
give an example of an antibiotic
penicillin
