Relationships of Pathogenic Organisms Flashcards
What the five pathogens are and how they work
What are the Five Pathogens?
Bacteria, Fungi, virus, Parasites, Protozoa
How does our immune system respond to bacteria?
It recognises proteins on the surface of the bacteria
What cell can bacteria change the amount of?
Immune Cells
What fungi cause diseases in humans?
Pathogenic fungi
How does our immune system fight fungi?
Antibodies bind to them and target them for destruction. Cells in the immune system then destroy them.
What is a virus?
Genetic material (DNA or RNA) surrounded by a protective protein coating
Why aren’t viruses a living organism?
They need a host cell to reproduce
Why are viruses hard to defend against?
They mutate when they come into contact with new DNA so prior antibodies wont work.
What is a parasite?
An organism that lives on or inside another host organism
How do parasites affect the hosts immune system?
By modulating the immune responses
What are protozoa’s?
They are eukaryotic (has a nucleus), unicellular and often parasitic
