2-9 Flashcards
1
Q
The minimum temperature below which a microorganism cannot grow, the optimum temperature at which a MO grows best, and the maximum temperature above which a MO cant grow ?
minimum, maximum, and optimum temp.
A
cardinal temperature
2
Q
which organism grows below 20 degrees Celsius?
0-20
A
psychrophiles
common on ocean, Artic,
0-30 psychrotrophs
3
Q
which organism grows between 20-45 degrees Celsius?
A
Mesophiles
soils, sediments, water, human body
4
Q
which organism grows between 45-70 degrees Celsius?
A
Thermophiles
desert
obligate thermophiles: will not grow below 40
facultative thermophiles: grow below 40
Extreme thermophiles: 70-100 hot springs
Hyperthermophiles: 100-150 deep water vent communities
5
Q
Most MO are?
A
mesophiles
