what do bacteria and viruses release to make us feel ill?
toxins
2 of 22
where do viruses reproduce?
inside cells
3 of 22
what is the name of the white blood cell which release antibodies
lymphocytes
4 of 22
what is the name of the white blood cell which ingests the pathogens?
phagocytes
5 of 22
how do lymphocytes work?
they produce antibodies and antitoxins which counteract the toxins produced by the pathogens
6 of 22
how do vaccines work?
dead or weakened microbes are injected into the body so that the lymphocytes are stimulated to produce antibodies and that the level of antibodies will stay high until you next need it in within 10 years
7 of 22
if a large amount of the population is immune to a pathogen what happens?
the spread of the pathogen is reduced greatly
8 of 22
what did semmelweiss recognise?
the importance of hand-washing of spreading some infectious diseases
9 of 22
how did he do this?
by insisting that doctors washed their hands before examining patients
10 of 22
what do painkillers do?
they help to relieve the symptoms of infectious diseases
11 of 22
what do painkillers not do?
kill the pathogens
12 of 22
what are antibiotics used for?
to help cure and kill bacterial diseases
13 of 22
what can antibiotics not be used for?
to cure viral infections
14 of 22
why should we limit the amount of antibiotics we use?
because otherwise the rate of development of antibiotic resistant strains of bacteria will increase
15 of 22
what is natural selection?
where organisms adapt to new surroundings to survive
16 of 22
give an example of a disease which the antibiotics have been over-prescribed for?
MRSA
17 of 22
why do new stains of pathogens spread quickly?
because people arent immune to it and there is no treatment
18 of 22
what does MMR stand for?
measles, mumps and rubella
19 of 22
what is the temperature that schools incubate pathogens at?
25
20 of 22
why do they incubate it at this temperature?
because it reduces the risk greatly towards humans?
21 of 22
in industrial conditions, why do pathogens reproduce quicker?
because of the higher temperatures
22 of 22
Other cards in this set
Card 2
Front
what do bacteria and viruses release to make us feel ill?
Back
toxins
Card 3
Front
where do viruses reproduce?
Back
Card 4
Front
what is the name of the white blood cell which release antibodies
Back
Card 5
Front
what is the name of the white blood cell which ingests the pathogens?
Comments
No comments have yet been made