Flashcards in Fighting Disease Deck (25)
What is a pathogen?
A microorganism that causes a disease
Name the 3 types of microorganism that can be pathogens.
Which diseases are caused by a virus?
Which diseases are caused by a bacteria?
Salmonella (food poisoning)
How can pathogens spread?
How can the body prevent pathogens from entering
What does the body produce if pathogens get inside it
White blood cells
Name 3 ways that white blood cells stop pathogens
Engulf and kill
Produce antibodies to kill
Produce anti toxins to stop toxins harming us
What do white blood cells produce to kill pathogens?
What do antibodies do?
What can viruses and bacteria produce to make us feel unwell?
What do pathogens have which identifies them?
White blood cells have a _________ which can remember how to make antibodies in case the pathogen ever comes back.
What does an antitoxin do?
Stops toxins from making use feel unwell
Name some symptoms of being infected by a pathogen
How do bacteria make us feel unwell?
How do viruses make us feel unwell?
Multiply inside cell damaging them
What is a vaccination/immunisation?
An injection of dead/weakened pathogen which gives protection against the pathogen
Describe the steps involved in vaccination/immunisation
-Injection of dead/weakened pathogen
-White blood cells produce antibodies to kill pathogen
-White blood cells produce antitoxin to stop toxins harming
-White blood cells remember how to kill it
-Antibodies rapidly produced if the real pathogen infects you
What can overuse of antibiotics lead to?
Resistant strains of bacteria
Antibiotics do not work on...
The ideal temperature to grow bacteria in a school is
25 degrees celsius
Why would you not grow bacteria in a school above 25 degrees celsius?
Because you could grow pathogens
Why do antibiotics not cure a cold/flu?
because cold/flu is caused by a virus
antibiotics do not work on viruses