Pathogens - Topic 2 Flashcards
1
Q
What are pathogens?
A
Agents that cause disease
They can be cellular or non-cellular
2
Q
What are prions?
A
A type of protein that can trigger normal proteins in the brain to fold abnormally
3
Q
What are viruses?
A
an infectious agent that can only replicate within a host organism
4
Q
What are bacteria?
A
Bacteria are small single-celled organisms that lack a nuclear membrane, and are metabolically active and divide by binary fission
5
Q
What is fungi?
A
eukaryotic organisms that include microorganisms such as yeasts, molds and mushrooms
6
Q
What are protozoa?
A
Microscopic unicellular eukaryotes that have a relatively complex internal structure and carry out metabolic activities
7
Q
What are parasites?
A
Organisms that depend on a host to survive and spread
