pathogens Flashcards
1
Q
what is a pathogen ?
A
. a disease causing micro - organism
2
Q
are all micro - organisms pathogens?
A
. no, some can be harmless some can even be used for antobiotics
3
Q
what are the 4 examples of pathogens?
A
. bacteria
. viruses
. protists
. fungi
4
Q
what does a bacteria cell contain?
A
. a cytoplasm
. no nucleus just a circular strand of DNA
5
Q
how do bacteria reproduce?
A
. by dividing in two to form clones
6
Q
What are the features of viruses ?
A
. smaller than bacteria
. have a protein coat
7
Q
how do viruses reproduce?
A
. can only reproduce in a host cells, reproducing virus destorys cell meaning virus is free to attack other cells
8
Q
how are communicable diseases spread?
A
. contact
. aerosol
. bodily fluids
. water
. insects
. contaminated food
