pathogens Flashcards
1
Q
what are pathogens?
A
micro organisms that cause infectious disease
2
Q
how are pathogens spread and what do the effect?
A
they can infect plants and animals and they are spread through direct contact, the air or water
3
Q
how do pathogens survive?
A
they live off of their host
4
Q
what can pathogens be?
A
bacteria, viruses, fungi or protists.
5
Q
viral diseases…
A
reproduce rapidly and live and produce inside us causing cell damage
6
Q
bacterial diseases…
A
may reproduce rapidly and produce toxins that damage tissue and make us feel ill.
7
Q
example of viral disease… measles
A
- fever and rash
- can be fatal
- caught through inhalation of viral particles.
- it is controlled through vaccination
8
Q
example of bacterial disease… salmonella
A
- spread through indigestion
- secretes toxins… fever cramps diarrhoea and vomiting
- animals are vaccinated to stop spread
9
Q
fungal disease… rose black spot
A
- photosynthesis is reduced.
- spreads through wind
- treated by burning infected leaves
10
Q
protist disease… malaria
A
- mosquitoes feed on infected blood the bite a human.
- mosquitoes are vectors as they don’t get sick themselves.
- recurrent fever
- can be fatal
- spread by using nets
