Microbial Ecology MCQs with Answers

Which domain of life includes microorganisms such as bacteria and archaea?

Which microbial group is responsible for fixing carbon dioxide into organic compounds?

What is the term for a community of microorganisms living together in a particular habitat?

What is the term for microorganisms that can survive and thrive in extreme pH conditions?

Which process involves the reduction of nitrate to nitrogen gas by microorganisms?

Which term describes the total genetic material present in the microorganisms in a particular environment?

Which environmental factor is most critical in determining the distribution of halophilic microorganisms?

What is the primary role of decomposers in microbial ecology?

Which process involves microorganisms converting atmospheric nitrogen into a usable form?

What is the term for the process where microorganisms convert nitrites into nitrogen gas?

Which term describes the relationship where one organism benefits and the other is unaffected?

What is the term for microorganisms that thrive in acidic environments?

Which microbial group is responsible for the production of methane in anaerobic environments?

Which of the following is an example of a symbiotic relationship between a fungus and a photosynthetic organism?

What is the primary focus of microbial ecology?

Which term describes the relationship where both organisms benefit in a microbial interaction?

What is the term for the conversion of organic nitrogen into ammonia by microorganisms?

Which process involves the breakdown of organic nitrogen into ammonia by microorganisms?

Which environmental factor is crucial for determining the distribution of psychrophilic microorganisms?

Which term describes the study of microorganisms in their natural habitats and interactions?

What is the term for microorganisms that require high salt concentrations for growth?

Which microbial group is known for their ability to survive in very cold environments?

What is the term for the relationship where one organism benefits and the other is harmed?

Which environmental factor is crucial for determining the distribution of acidophilic microorganisms?

What is the term for the process of microorganisms converting nitrate to nitrogen gas?

Which microbial group is adapted to thrive in high-temperature environments?

Which term describes the study of how microorganisms interact with each other and their environment?

Which term describes the variety of microbial species present in a particular environment?

Which of the following is an example of a extremophile that thrives in high-salt environments?

Which term describes the community of microorganisms living in and on the human body?

Which type of microbial interaction involves both organisms benefiting without harming each other?

Which type of microbial interaction involves one organism benefiting at the expense of another?

Which term describes the process where microorganisms convert ammonia into nitrites and nitrates?

Which process involves the breakdown of organic matter by microorganisms into simpler compounds?

Which process involves microorganisms converting ammonium ions into nitrites and nitrates?

Which environmental factor primarily determines the distribution of thermophilic microorganisms?

What is the term for the process of microorganisms converting ammonia into nitrites and nitrates?

What is the term for a close physical association between two different species of organisms?

What is the term for the study of microorganisms and their interactions within a specific environment?

Which term describes the diversity of microorganisms in a particular habitat or ecosystem?