Chapter 17 Flashcards
1
Q
Microbiology
A
Study of organisms too small to see
2
Q
Subdivision of microbiology
A
Virology
3
Q
Living and nonliving characteristics
A
Living:
•Contain DNA/RNA
•Protein
•Enzyme
Non-Living:
•Non-cellular
•Don’t breathe, respond to stimuli or grow
•Reproduce in living cells and are assembled in parts that join together
•Crystals
4
Q
Bacteria Viruses
A
Bacteriophage
5
Q
Plant Viruses
A
Tobacco Mosaic Virus
6
Q
Animal Viruses
A
- Adenovirus (Cold)
- Herpes
- Small pox
- Measles
- HPV
- Epstein-Barr
- HIV, Ebola, Yellow Fever
- Hanta Virus
7
Q
Size of Viruses
A
Micrometer and can pass through most filters.
8
Q
Origin
A
- Non-cellular ancestors who are parasitic
- Fragments of other cells together
- Link that formed origin of all life on earth
9
Q
Specifically of a Virus
A
Invades only a certain type of cell
10
Q
CDC
A
Atlanta and Winnipeg Responsible for monitoring treatments/cure
11
Q
3 Ways Viruses Can Spread
A
- Airbourne
- Vector - transmitted intermediately
- Vehical - transmitted through fluid contact
12
Q
Defence Against Viruses
A
- Vaccines - Weak forms of the virus injected into white blood cells to make antibodies to attack and kill the virus.
- Phagocytes and Natural Killer Cell’s - Engulf virus before it has a chance to land.
- IF - Chemical produced by infected cells that warns virus
13
Q
Death of Cell By Lysis
A
Death of host
14
Q
Latent Infection
A
Chance for further infection
15
Q
Cancer
A
Death
