MM: Fall Semester Final Exam

Front

What is a Mesophile?

Back

A microorganism that thrives at moderate temperatures, typically between 20°C and 40°C.

Front

What are Koch's Postulates?

Back

A series of criteria established by Robert Koch to identify the causative agents of infectious diseases.

Front

What do we examine when using a dichotomous key?

Back

Physical features of organisms to identify them.

Front

What is the first step when focusing on a new specimen under a microscope?

Back

Always begin with low power and coarse adjustment.

Front

What are pure cultures obtained from?

Back

Isolating inoculums.

Front

Define Psychrotolerant microorganisms.

Back

Microorganisms that can grow at low temperatures but have optimal growth at higher temperatures.

Front

What is a Thermophile?

Back

A microorganism that thrives at high temperatures, typically above 45°C.

Front

What is the purpose of a dichotomous key?

Back

To help identify organisms based on a series of choices that lead to the correct name.

Front

What is the significance of CFUs in microbiology?

Back

CFUs, or colony-forming units, are used to estimate the number of viable microorganisms in a sample.

Front

What is the role of inoculums in microbiology?

Back

Inoculums are samples of microorganisms used to start a culture.