Ch 3: Microbiology and Cell Culture

Names and Shapes of Bacteria:

Cocci: Spheres/balls

Bacillus: oval/rod

Spirillum: spiral

Some Greek prefixes show how bacteria arranges itself while growing

• Strepto: twisted chain

• Staphylo: bunch of grapes

Bacterial Environments:

Aerobic:

• High O2 levels

• Obligate if O2 is absolutely necessary for growth

• Facultative if they just grow better in O2 but not required

Anaerobic:

• Absence of O2

• Obligate if absence of o2 is necessary

• Facultative if they grow better in absence of O2

Ideal Temps:

• Psychrophilic:

• Mesophlic:

• Thermophulic: