hw8

Choose the temperature range of mesophilic microorganisms.

10°C-50°C

Choose the temperature range of psychrophilic microorganisms.

15°C to -20°C

Because human body temperature is approximately ° Celsius, the majority of medically significant microorganisms are mesophiles.

37 or 37.4

Choose the temperature range of thermophilic microorganisms.

45°C-80°C

Which enzyme converts hydrogen peroxide, formed in aerobic respiration, to water and oxygen?

Catalase

From which environment would you most likely observe growth of psychrophilic microorganisms?

Frozen food

Where would a thermophilic microorganism be found?

In natural hot springs

What word describes a microbe that must have oxygen to survive?

Obligate aerobe

The temperature at which a species shows the most rapid growth rate is known as the cell's temperature.

Optimal

Which term describes a microorganism that thrives and divides under refrigeration conditions?

Psychrophile

Choose the temperature range of mesophilic microorWhich is FALSE regarding a facultative anaerobe?ganisms.

The electron transport system is non-functional

What term is used to describe microbes which can survive fairly high temperatures but can only metabolize and reproduce at lower temperatures?

Thermoduric

The scientist in this image is working with organisms that are ______

anaerobic

A(n) ______ is an aerobic bacterium that requires oxygen at a concentration less than that in the atmosphere.

microaerophile

To obligate anaerobes, oxygen is ______ and ______.

not used toxic

Which gas has the greatest impact on microbial growth and is a powerful oxidizing agent that exists in many forms that can be toxic to microbes?

oxygen

Microorganisms that prefer hot environments in the range of 45°C to 80°C are called----philes

thermo

Identify any condition which would be optimal for most human anaerobic pathogens.

~35C Low to no oxygen present