20 Questions
Which staining technique is commonly used to differentiate between gram-negative and gram-positive bacteria?
Gram staining
What is the function of the peptidoglycan layer in the bacterial cell wall?
Give shape to the cell
Which external structure of bacteria is responsible for movement?
Flagella
What is the basic component of any bacterial cell wall?
Peptidoglycan
Which type of bacteria has an outer membrane in its cell wall?
Gram-negative bacteria
What is the function of fimbriae in bacteria?
Attachment to other bacteria or cells
Which staining technique is used to identify acid-fast bacteria?
Ziehl-Neelsen staining
What is the function of glycocalyx in bacteria?
Protection against antimicrobial drugs
What is the primary stain used in the Gram staining technique?
Crystal violet
What is the purpose of the counterstain in the Gram staining technique?
To stain gram-negative cells pink
Which bacterial cell structure is characterized by a spherical shape?
Coccus
Which bacterial cell structure is characterized by a rod shape?
Bacillus
Which bacterial cell structure is characterized by a short rod shape?
Coccobacillus
Which bacterial cell structure is characterized by a comma shape?
Vibrio
Which bacterial cell structure is characterized by a spiral shape?
Spirillum
Which bacterial cell structure is characterized by a helical shape?
Spirillum
What is the first step in binary fission in bacteria?
Chromosome replication begins.
What is the final step in binary fission in bacteria?
Two daughter cells result.
What is the process called when bacteria divide by snapping into two daughter cells?
Snapping division
What are the spores of actinomycetes called?
Actinospores
Test your knowledge on the basic morphology and structure of bacterial cells with this quiz. Learn about the different shapes and structures of bacteria, and how they appear under a microscope. Challenge yourself to identify cocci, bacilli, and other types of bacteria.
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