1
Q
what is a pathogen?
A
a microorganism that causes disease
2
Q
what is a disease?
A
any condition that impairs the normal functioning of an organism.
==> disease can be infectious, non-infectious, acute or chronic
3
Q
how does bacteria make us ill?
A
- divides rapidly into 2 by binary fission
- this may produce toxins
- which sometimes directly damages cells
4
Q
how do viruses make us ill?
A
- take over body cells
- live and reproduce inside the cell which causes damage and destruction
5
Q
A
Biology - Topic 2
flashcards
Decks in class (3)
# Cards
