Podcast
Questions and Answers
What is the correct definition of an antibiotic?
What is the correct definition of an antibiotic?
- Any substance produced by a prokaryote that prevents growth of the same prokaryote.
- Any substance produced by a prokaryote that is antagonistic to the growth of eukaryotic cells.
- Any substance produced by an organism that is antagonistic to the growth of prokaryotes. (correct)
- Any substance produced by a prokaryote that is antagonistic to the growth of viruses.
What are plasmids composed of?
What are plasmids composed of?
- Protein
- Nucleic acids (correct)
- Polysaccharides
- Lipids
How does antibiotic resistance develop in bacteria?
How does antibiotic resistance develop in bacteria?
- i and ii (correct)
- Bacteria exchange genetic material with other bacteria, acquiring resistance genes.
- Bacteria can deactivate antibiotics within their cells.
- Bacteria naturally develop resistance over time through mutation.
What type of cells do you obtain after a F+ bacterium conjugates with a F- bacterium?
What type of cells do you obtain after a F+ bacterium conjugates with a F- bacterium?
How do Gram-positive bacteria appear in Gram staining?
How do Gram-positive bacteria appear in Gram staining?
What term best describes Porphyromonas gingivalis, a Gram-negative bacterium?
What term best describes Porphyromonas gingivalis, a Gram-negative bacterium?
What is the classification of the majority of prokaryotes?
What is the classification of the majority of prokaryotes?
Which organelle is typically absent in prokaryotic cells?
Which organelle is typically absent in prokaryotic cells?
What is the characteristic of DNA structure in both Eubacteria and Archaea?
What is the characteristic of DNA structure in both Eubacteria and Archaea?
What is a characteristic of microbial mats?
What is a characteristic of microbial mats?
What is a characteristic of Halophiles?
What is a characteristic of Halophiles?
Which group of organisms is characterized by the presence of pseudo peptidoglycan in their cell walls?
Which group of organisms is characterized by the presence of pseudo peptidoglycan in their cell walls?
What type of prokaryotes are unable to grow in a laboratory setting?
What type of prokaryotes are unable to grow in a laboratory setting?
Which type of interaction between two prokaryotic populations benefits one population and does not affect the other?
Which type of interaction between two prokaryotic populations benefits one population and does not affect the other?
Which type of bacteria is responsible for nitrogen fixation?
Which type of bacteria is responsible for nitrogen fixation?
What process occurs during binary fission in prokaryotic cells?
What process occurs during binary fission in prokaryotic cells?
What is an example of horizontal gene transfer in prokaryotic reproduction?
What is an example of horizontal gene transfer in prokaryotic reproduction?
Which of the following species is NOT a Gamma proteobacterium?
Which of the following species is NOT a Gamma proteobacterium?
Which type of anaerobic prokaryote can survive in the presence of oxygen but does not use it for metabolism?
Which type of anaerobic prokaryote can survive in the presence of oxygen but does not use it for metabolism?
Which prokaryote is responsible for causing the Black Death plague?
Which prokaryote is responsible for causing the Black Death plague?
Which of the following is a primary mode of transmission for pathogenic prokaryotes?
Which of the following is a primary mode of transmission for pathogenic prokaryotes?
Which beneficial prokaryote is commonly used in the production of dairy products?
Which beneficial prokaryote is commonly used in the production of dairy products?
Which group of prokaryotes is responsible for the production of antibiotics?
Which group of prokaryotes is responsible for the production of antibiotics?
Which of the following is an example of prokaryotes playing a role in carbon sequestration?
Which of the following is an example of prokaryotes playing a role in carbon sequestration?
What is the role of nitrifying bacteria in the nitrogen cycle?
What is the role of nitrifying bacteria in the nitrogen cycle?
What organelle did aerobic prokaryotes evolve to become in eukaryotic cells?
What organelle did aerobic prokaryotes evolve to become in eukaryotic cells?
Why did chloroplast likely evolve before mitochondria?
Why did chloroplast likely evolve before mitochondria?
What were bacteria collectively referred to as before Carl Woese defined Eubacteria and Archaebacteria?
What were bacteria collectively referred to as before Carl Woese defined Eubacteria and Archaebacteria?
What is the correct statement about the relationship between photosynthesis and aerobic respiration?
What is the correct statement about the relationship between photosynthesis and aerobic respiration?
