Podcast
Questions and Answers
What is the main role of chemoheterotrophic prokaryotes in ecosystems?
What is the main role of chemoheterotrophic prokaryotes in ecosystems?
- Decrease the availability of nutrients
- Break down dead organisms and waste products (correct)
- Act as hosts for pathogens
- Increase the availability of nutrients
Which term describes the relationship between two species where one benefits while the other is neither harmed nor helped?
Which term describes the relationship between two species where one benefits while the other is neither harmed nor helped?
- Parasitism
- Mutualism
- Ammensalism
- Commensalism (correct)
What is the main difference between exotoxins and endotoxins released by pathogenic bacteria?
What is the main difference between exotoxins and endotoxins released by pathogenic bacteria?
- Type of proteins secreted
- Location of toxins within the cell
- Effect on the host organism
- Source of toxins (correct)
How do mutualistic bacteria in human intestines benefit the host?
How do mutualistic bacteria in human intestines benefit the host?
Which type of symbiosis involves harming but not killing the host organism?
Which type of symbiosis involves harming but not killing the host organism?
What is the primary function of Gram-positive bacteria in causing diseases?
What is the primary function of Gram-positive bacteria in causing diseases?
What is the size range of most prokaryotic cells?
What is the size range of most prokaryotic cells?
Which of the following is a common shape of prokaryotic cells?
Which of the following is a common shape of prokaryotic cells?
What is the main characteristic that distinguishes prokaryotes from eukaryotes?
What is the main characteristic that distinguishes prokaryotes from eukaryotes?
Which term is used to describe rod-shaped bacteria?
Which term is used to describe rod-shaped bacteria?
What structures contribute to the success of prokaryotes?
What structures contribute to the success of prokaryotes?
Which domain do prokaryotes belong to?
Which domain do prokaryotes belong to?
What is the role of oxygen in metabolism for obligate anaerobes?
What is the role of oxygen in metabolism for obligate anaerobes?
Which bacteria group includes organisms that do not have a cell wall?
Which bacteria group includes organisms that do not have a cell wall?
What type of bacteria are Mycoplasma and Chlamydia in terms of their nutritional requirements?
What type of bacteria are Mycoplasma and Chlamydia in terms of their nutritional requirements?
Which bacterial group is known for containing pathogens that can cause blood poisoning and stomach ulcers?
Which bacterial group is known for containing pathogens that can cause blood poisoning and stomach ulcers?
In what kind of environment do extreme halophiles live?
In what kind of environment do extreme halophiles live?
Which bacteria group includes sulfur bacteria such as Thiomargarita namibiensis?
Which bacteria group includes sulfur bacteria such as Thiomargarita namibiensis?
What is the role of nitogen fixation in prokaryotes?
What is the role of nitogen fixation in prokaryotes?
What type of bacteria are Actinomycetes known to be in terms of their role in soil?
What type of bacteria are Actinomycetes known to be in terms of their role in soil?
Which bacterial group includes the causative agent of Lyme disease?
Which bacterial group includes the causative agent of Lyme disease?
What is the nutritional characteristic of Cyanobacteria?
What is the nutritional characteristic of Cyanobacteria?
