Psychrophiles
cold lovingoptimum temp. 15 C
Mesophiles
moderate temperature optimum temp. 37C (most are pathogenic)
Thermophiles
heat lovingoptimum temp. 50-60C
Bacteria pH optimized most at ____________.
6.5 to 7.5
Fungi pH optimized most at ____________.
5.0 to 6.0
Aerobes
require oxygen for growth
Facultative anaerobes
could grow in oxygen or without oxygen
Obligate anaerobes
harmed by oxygen and thrive in non-oxygen environments
What neutralizes superoxide radicals (toxic)?
neutralized by catalase, peroxidase, superoxide dismutase
What type of bacteria posses enzyme superoxide dismutase?
aerobes and facultative
Microaerophiles
require lower amounts of oxygen for growth
Capnophiles
grow better at high CO2 concentrations
Aerotolerant
do not require oxygen to grow, however, not poisoned by oxygen