Chp 18 micobiology Flashcards
What is the shape of Bacilli?
Rod
Non pathogenic
Do not produce human illness, used in production of cheese and yogurt
Anthony Leeuwenhock
Use a microscope to observe teeth scrapings
What are the characteristics of Viruses?
Smaller than bacteria
Can cause fatal diseases
Can live and multiply w/in an appropriate host cell
Invades a host cell, replicates itself, destroy host cell.
Which form of Cocci forms irregular groups or clusters?
Staphylocci
Major groups of micro organisms
Bacteria, protozoa, fungal, viruses, Algae
How does bacterial infection occur?
When natural bacteria invades another part of the body
What is the shape of Cocci?
Spherical
What’s the shape of the Spirocheres?
Spiral
Which bacteria divides into 2?
Cocci
What are the two Cocci divisions?
Streptococci and Staphylocci
Found in fresh water, moist soil, marine habitats
One celled
They eat bacteria, small algae and Protozoa.
Protozoa
Which division of Cocci forms chains?
Streptococci
Which bacteria doesn’t need oxygen to grow?
Anaerobes
What are the characteristics of bacteria?
One celled
Thrive in dark, moist environments.
“good” bacteria protects human host from harmful bacteria
Which bacteria needs oxygen to grow?
Aerobes
Which bacteria is able to grow with or with out oxygen?
Facultative Anaerobes
Bacteria that change into a highly resistant form.
Spores
Bacteria forms a _______ that protects the layer that covers the cell wall.
Capsule
Singled celled and multiple celled organisms
Contains chlorophyll
Algae
Lack chlorophyll
Found in oral cavity, female genital tract, gastrointestinal tract.
Opportunistic
Fungi
Pathogens
Disease producing micro organism
John Tyndall
Tyndallization- intermittent heating to destroy microbial life on food.
Which types of Hepatitis is blood borne?
B,C and D
Which type of Hepatitis is Fecal-Oral transmitted?
A and E
