Podcast
Questions and Answers
What happens when microorganisms are introduced directly into the bloodstream or internal organs?
What happens when microorganisms are introduced directly into the bloodstream or internal organs?
- The microorganisms multiply and cause the host to react, leading to infection. (correct)
- The host's body functions are impaired, leading to infectious disease.
- The host's immune system immediately eliminates the microorganisms.
- The microorganisms enter a carrier state, but do not cause harm to the host.
What is the characteristic of the chromosome in prokaryotic cells?
What is the characteristic of the chromosome in prokaryotic cells?
- Single, circular chromosome with nucleoli (correct)
- Single, linear chromosome with no nucleoli
- Multiple, linear chromosomes with nucleoli
- Multiple, circular chromosomes with no nucleoli
What is a characteristic that distinguishes eukaryotic pathogens from others?
What is a characteristic that distinguishes eukaryotic pathogens from others?
- Ability to undergo photosynthesis
- Ability to form endospores
- Absence of a cell wall
- Presence of a well-defined nucleus (correct)
What is the function of the cell wall in bacteria?
What is the function of the cell wall in bacteria?
What is the main difference between prokaryotic and eukaryotic cells?
What is the main difference between prokaryotic and eukaryotic cells?
Which of the following is NOT a characteristic of bacteria?
Which of the following is NOT a characteristic of bacteria?
What is a characteristic of mycoplasma?
What is a characteristic of mycoplasma?
What is the common characteristic of prokaryotic pathogens?
What is the common characteristic of prokaryotic pathogens?
Which of the following is an example of an atypical bacterium?
Which of the following is an example of an atypical bacterium?
What is the name of the basic shape that bacteria can assume?
What is the name of the basic shape that bacteria can assume?
What is the characteristic of helminths?
What is the characteristic of helminths?
What is the characteristic of the ribosome in prokaryotic cells?
What is the characteristic of the ribosome in prokaryotic cells?
What is the size range of prokaryotic cells?
What is the size range of prokaryotic cells?
What is the composition of viruses?
What is the composition of viruses?
What is the characteristic of prions?
What is the characteristic of prions?
Which of the following is NOT a characteristic of protozoa?
Which of the following is NOT a characteristic of protozoa?
What is the primary mechanism by which normal flora prevent the colonization of the body by pathogens?
What is the primary mechanism by which normal flora prevent the colonization of the body by pathogens?
What is the function of the capsule in bacterial cells?
What is the function of the capsule in bacterial cells?
What is the composition of the cell cytoplasmic membrane in bacteria?
What is the composition of the cell cytoplasmic membrane in bacteria?
What is the function of Vit.K and Vitamin B produced by normal flora?
What is the function of Vit.K and Vitamin B produced by normal flora?
What is the effect of C.di on the gut?
What is the effect of C.di on the gut?
What is the significance of bacterial colonization in new-born infants?
What is the significance of bacterial colonization in new-born infants?
What is the characteristic feature of all bacteria?
What is the characteristic feature of all bacteria?
What is the difference between Gram-positive and Gram-negative bacteria?
What is the difference between Gram-positive and Gram-negative bacteria?
What is the primary function of the self-produced matrix of extracellular polymeric substances in biofilm formation?
What is the primary function of the self-produced matrix of extracellular polymeric substances in biofilm formation?
Which of the following is an example of host-mediated pathogenesis?
Which of the following is an example of host-mediated pathogenesis?
What is the primary purpose of antigenic variation in bacteria?
What is the primary purpose of antigenic variation in bacteria?
Which structure is used by Escherichia coli to adhere to host cells?
Which structure is used by Escherichia coli to adhere to host cells?
What is the primary function of bacterial enzymes such as collagenase and hyaluronidase?
What is the primary function of bacterial enzymes such as collagenase and hyaluronidase?
What is the term for the ability of bacteria to enter or penetrate host cells or mucosa?
What is the term for the ability of bacteria to enter or penetrate host cells or mucosa?
What is the name of the membrane protein that interacts with host cells to facilitate bacterial uptake?
What is the name of the membrane protein that interacts with host cells to facilitate bacterial uptake?
Which of the following is NOT a mechanism used by bacteria to evade the host's immune system?
Which of the following is NOT a mechanism used by bacteria to evade the host's immune system?
What is the primary characteristic of exotoxins produced by bacteria?
What is the primary characteristic of exotoxins produced by bacteria?
Which type of toxin is a lipid portion of lipopolysaccharide (LPS) that is part of the outer membrane of Gram-negative bacteria?
Which type of toxin is a lipid portion of lipopolysaccharide (LPS) that is part of the outer membrane of Gram-negative bacteria?
What is the primary difference between aerobic and anaerobic respiration in bacteria?
What is the primary difference between aerobic and anaerobic respiration in bacteria?
What is the purpose of Gram staining in the identification of bacteria?
What is the purpose of Gram staining in the identification of bacteria?
Which of the following is a characteristic of Gram-positive bacteria?
Which of the following is a characteristic of Gram-positive bacteria?
What is the primary advantage of aerobic respiration over fermentation in bacteria?
What is the primary advantage of aerobic respiration over fermentation in bacteria?
Which of the following is a characteristic of endotoxins?
Which of the following is a characteristic of endotoxins?
What is the primary difference between obligate and facultative anaerobes?
What is the primary difference between obligate and facultative anaerobes?
What is the primary function of the electron transport chain in bacterial energy production?
What is the primary function of the electron transport chain in bacterial energy production?