Podcast
Questions and Answers
What is the characteristic arrangement used to group Cocci?
What is the characteristic arrangement used to group Cocci?
- Long filaments
- Pairs
- Clusters (correct)
- Chains
What shape do bacteria with less than one complete twist or turn typically have?
What shape do bacteria with less than one complete twist or turn typically have?
- Rod-shaped
- Cube-shaped
- Spherical
- Spiral (correct)
What are the hair-like helical appendages responsible for swimming motility in bacteria called?
What are the hair-like helical appendages responsible for swimming motility in bacteria called?
- Glycocalyx
- Flagella (correct)
- Cilia
- Pili
Which bacterial species is an example of Streptobacilli?
Which bacterial species is an example of Streptobacilli?
What is the common external structure found in all bacterial cells?
What is the common external structure found in all bacterial cells?
Which shape indicates that a bacterium has one or more complete turns?
Which shape indicates that a bacterium has one or more complete turns?
Who proposed the kingdom 'Protista' to include microorganisms that are typically neither plants nor animals?
Who proposed the kingdom 'Protista' to include microorganisms that are typically neither plants nor animals?
Which of the following is not included in the Protists kingdom according to the text?
Which of the following is not included in the Protists kingdom according to the text?
What distinguishes prokaryotic cells from eukaryotic cells?
What distinguishes prokaryotic cells from eukaryotic cells?
Which group of microorganisms are referred to as 'higher protists'?
Which group of microorganisms are referred to as 'higher protists'?
In which century were all living organisms grouped into two kingdoms, plant and animal, before the discovery of the microbial world?
In which century were all living organisms grouped into two kingdoms, plant and animal, before the discovery of the microbial world?
What was discovered with the aid of electron microscopy in the 1940s that led to the distinction between prokaryotes and eukaryotes?
What was discovered with the aid of electron microscopy in the 1940s that led to the distinction between prokaryotes and eukaryotes?
During which phase of growth does cell growth occur without cell division?
During which phase of growth does cell growth occur without cell division?
What factor does not influence the length of the lag phase?
What factor does not influence the length of the lag phase?
If a culture in exponential growth is transferred to fresh medium, which of the following is likely true?
If a culture in exponential growth is transferred to fresh medium, which of the following is likely true?
What happens to the population of cells during the lag phase?
What happens to the population of cells during the lag phase?
In which phase do all cells become capable of dividing at regular intervals by the end?
In which phase do all cells become capable of dividing at regular intervals by the end?
Which type of culture inoculum is more likely to result in a lag phase when transferred to fresh medium?
Which type of culture inoculum is more likely to result in a lag phase when transferred to fresh medium?
Which of the following serves as a reserve source of phosphate in bacteria?
Which of the following serves as a reserve source of phosphate in bacteria?
In which habitat are gas vesicles typically found in bacteria?
In which habitat are gas vesicles typically found in bacteria?
Which type of spore is extremely resistant to desiccation, staining, disinfecting chemicals, radiation, and heat?
Which type of spore is extremely resistant to desiccation, staining, disinfecting chemicals, radiation, and heat?
Which type of spore is formed external to the vegetative cell by budding at one end of the cell?
Which type of spore is formed external to the vegetative cell by budding at one end of the cell?
Which type of spore is contained in an enclosing sac called a sporangium?
Which type of spore is contained in an enclosing sac called a sporangium?
In which bacterial genera are endospores typically produced (one per cell)?
In which bacterial genera are endospores typically produced (one per cell)?
What controls the level of growth in a medium?
What controls the level of growth in a medium?
How does a turbidostat control growth rate?
How does a turbidostat control growth rate?
What prevents exponential growth from occurring indefinitely in a closed system?
What prevents exponential growth from occurring indefinitely in a closed system?
What would happen if a single bacterium with 20 minutes generation time grew exponentially for 48 hours?
What would happen if a single bacterium with 20 minutes generation time grew exponentially for 48 hours?
What occurs during the stationary phase in bacterial growth?
What occurs during the stationary phase in bacterial growth?
How is growth rate controlled in a photostat used for photosynthetic organisms?
How is growth rate controlled in a photostat used for photosynthetic organisms?
