b3 Flashcards
what a communicable disease
its infectious and spreads from person to person(direct)
whats a pathogen
pathogens are microorganisms that enter the body and cause disease
can plants and animals be infected btw pathogens
yes
what is bacteria
very small living cells that reproduce rapidly
what are viruses not
they are not cells but much smaller
what is a protist
a single celled eukaryote
fungi…
comes in different shapes and are single celled
what are eukaryotes
complex cells
what can pathogens be spread through
water
air
direct contact
what do pathogens cause
communicable disease
what are the 3 viral diseases
measles
HIV
TMV
how is measles spread
spread by droplets from an infected persons sneeze
How is HIV spread
spread by sexual contact
what does TMV affect
plants
wht is a example of a fungal disease
rose black spot
what does rose black spot cause
purple or black spots that develop on leaves
what is a disease caused by a protist
malaria
what does malaria cause
repeating episodes of fever
what are the 2 bacterial diseases
salmonella
Gonorrhoea
what does salmonella cause
food poisoning
what is gonorrhoea
a sexually transmitted disease
what cause’s Gonorrhoea
bacteria
how can you reduce or prevent the spread of disease
being hygienic
vaccinations
isolating infected
what does the body have
a sophisticated defence system
how can the immune system attach pathogens
consumption
producing antibodies
producing antitoxins
what is phagocytosis
white blood cells endulf cells and digest them
what do vaccinations do
protect from future infections
what do painkillers do
releive pain
what do antibiotics do
kill bacteria
whats an example of a painkiller
aspirin
example of antibiotic
pencillin
