Temperature and Bacteria

1- What classification would you put a bacteria in if it had an optimum growth temperature of 45°C and 80°C?

Psychrophile
Mesophile
Thermophile

2- What classification would a bacteria that grows best from 25°C to 40°C be placed in?

Psychrophile
Psychrotolerant
Thermophile
Mesophile

3- What classification would you put a bacteria in if it had an optimum growth temperature of 0°C and 20°C?

Psychrophile
Thermophile
Mesophile
Tsychrotolerant

5- What does it mean when a bacteria is psychrotolerant?

The bacteria grows well in a community with other psychrophilic organisms.
The bacteria can grow as low as O°C, but has an optimal growing temperature from 20°C to 40°C.
The bacteria grows well from 0°C to 40°C.
The bacteria tolerates other psychrophiles.

5- One important psychrophile is a bacteria that is known to grow in refrigerated foods. This bacteria is known to contaminate many dairy products and raw vegetables. Infections caused in otherwise healthy adults are often asymptomatic, but it can be fatal in nearly 1/3 of the infections it causes in immunocompromised individuals. What psychrophilic bacteria is known for these characteristics?

Listeria monocytogenes
Clostridium perfringens
Helicobacter pylori
Staphylococcus aureus

6- Yersinia enterocolitica is a well known psychrophile. Where is it famous for growing?

North Dakota
Undercooked meats
Vegetables from home gardens
Refrigerated blood products