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 i...
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
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