Chapter 6

What is the primary focus of food microbiology?

• The study of soil microorganisms

• The study of microorganisms in water

• The study of microorganisms that affect food safety and preservation

• The study of medical pathogens

Which of the following is an intrinsic factor affecting microbial growth in food?

• Temperature

• Humidity

• Atmosphere

• Food composition

What is the role of coliform bacteria in water microbiology?

• They enhance water quality

• They purify water

• They are harmful pathogens

• They indicate fecal contamination

How do fungi contribute to soil microbiology?

• By producing antibiotics

• By decomposing organic matter

• By fixing nitrogen

• By enhancing soil acidity

What is the significance of pasteurization in food microbiology?

• It increases shelf life without affecting taste

• It kills disease-causing microorganisms

• It enhances flavor

• It promotes fermentation

In the context of environmental microbiology, what is bioremediation?

• The application of antibiotics in agriculture

• The study of microbial life in extreme conditions

• The process of using microbes to clean up contaminated environments

• The fermentation of organic materials

Which of the following is a characteristic of medical microbiology?

• It is unrelated to pharmaceutical applications

• It deals exclusively with food safety

• It studies the effects of microorganisms on human health

• It focuses solely on soil microorganisms

What is the primary purpose of using indicator organisms in water testing?

• To estimate the level of fecal contamination

• To purify drinking water

• To enhance water quality

• To identify harmful pathogens

Which of the following is a method of downstream processing in industrial microbiology?

• Cell harvesting

• Inoculation

• Calibration

• Medium preparation