Infectious Agents Flashcards Preview

MCD - Introduction to Cells > Infectious Agents > Flashcards

Flashcards in Infectious Agents Deck (11):
1

What are the 5 main types of infectious agents?

Viruses
Bacteria
Fungi
Protozoa
Helminthes

2

Example of a pathogenic virus and the disease it causes

Influenza virus, causes the flu

3

Example of a pathogenic bacterium and the disease it causes

Mycobacterium tuberculosis, causes tuberculosis

4

Example of a pathogenic fungus and the disease it causes

Aspergillus fumigatus, causes aspergillosis

5

Example of a pathogenic protozoa and the disease it causes

Leishmania spp (parasite), causes leishmaniasis (sand fly vector)

6

Example of a pathogenic Helminth and the disease it causes

Schistosoma spp (parasites), causes schistosomiasis

7

Main distinguishing features and replication method of viruses

Obligate parasites, take over host nuclear synthetic machinery, divide by budding out of cell. Can congregate in liver then spontaneously release causing fever spike.

8

Main distinguishing features and replication method of bacteria

Prokaryotes, replicate by binary fission. 3 types: Bacillus (rod) Coccus (round) Spirillus (spiral).

9

Main distinguishing features and replication method of fungi

Single-celled eukaryotes. Spores spread and grow. Systemic infection affects immunocompromised people.

10

Main distinguishing features and replication method of protozoa

Singled celled eukaryotes. May have complex life cycles and multiple hosts, eg malaria with humans and mosquitoes

11

Main distinguishing features and replication method of Helminthes

Multicelled organisms, flatworms, roundworms, and tapeworms. Life cycles outside of host and transmitted by vectors.