Bacteriology Questions and Answers
Already Passed
What is the main function of bacterial pili?
✔✔To facilitate attachment to surfaces and host cells
What is the structure responsible for bacterial motility?
✔✔Flagella
What type of bacteria is characterized by a thick peptidoglycan layer in its cell wall?
✔✔Gram-positive bacteria
Which type of bacteria do not require oxygen for growth and are killed by it?
✔✔Anaerobic bacteria
What is the primary method by which bacteria reproduce?
✔✔Binary fission
1
,What is the most common method for identifying bacterial species in a clinical laboratory?
✔✔Gram staining
Which bacterial genus is known to cause tuberculosis?
✔✔Mycobacterium
Which term refers to bacteria that are spherical in shape?
✔✔Cocci
What type of bacterial secretion system is involved in transferring DNA between bacterial cells?
✔✔Conjugation pili
Which structure in bacterial cells contains the genetic material?
✔✔Nucleoid
What is the difference between endotoxins and exotoxins in bacteria?
✔✔Endotoxins are part of the bacterial cell wall, while exotoxins are secreted by bacteria
2
, What is the primary function of bacterial ribosomes?
✔✔Protein synthesis
Which type of bacteria has an outer membrane and is resistant to many antibiotics?
✔✔Gram-negative bacteria
Which genus of bacteria is responsible for causing strep throat?
✔✔Streptococcus
What is the process by which bacteria take up foreign DNA from their environment?
✔✔Transformation
Which bacterium is commonly associated with food poisoning from undercooked poultry?
✔✔Salmonella
What is the term for bacteria that can live in extreme environments, such as hot springs or acidic
conditions?
✔✔Extremophiles
3
Already Passed
What is the main function of bacterial pili?
✔✔To facilitate attachment to surfaces and host cells
What is the structure responsible for bacterial motility?
✔✔Flagella
What type of bacteria is characterized by a thick peptidoglycan layer in its cell wall?
✔✔Gram-positive bacteria
Which type of bacteria do not require oxygen for growth and are killed by it?
✔✔Anaerobic bacteria
What is the primary method by which bacteria reproduce?
✔✔Binary fission
1
,What is the most common method for identifying bacterial species in a clinical laboratory?
✔✔Gram staining
Which bacterial genus is known to cause tuberculosis?
✔✔Mycobacterium
Which term refers to bacteria that are spherical in shape?
✔✔Cocci
What type of bacterial secretion system is involved in transferring DNA between bacterial cells?
✔✔Conjugation pili
Which structure in bacterial cells contains the genetic material?
✔✔Nucleoid
What is the difference between endotoxins and exotoxins in bacteria?
✔✔Endotoxins are part of the bacterial cell wall, while exotoxins are secreted by bacteria
2
, What is the primary function of bacterial ribosomes?
✔✔Protein synthesis
Which type of bacteria has an outer membrane and is resistant to many antibiotics?
✔✔Gram-negative bacteria
Which genus of bacteria is responsible for causing strep throat?
✔✔Streptococcus
What is the process by which bacteria take up foreign DNA from their environment?
✔✔Transformation
Which bacterium is commonly associated with food poisoning from undercooked poultry?
✔✔Salmonella
What is the term for bacteria that can live in extreme environments, such as hot springs or acidic
conditions?
✔✔Extremophiles
3
