16 Questions
Which bacteria are characterized by a snake-like or spiraled shape?
Treponema
What is the shape of Staphylococcus sp.?
Grape-like clusters
What determines the shape of bacteria?
Rigid wall
What is the structure of the DNA chromosome in the cytoplasm of bacteria?
Single, double-stranded circle in a discrete area known as the nucleoid, no histones
What is the unique component of the outer membrane in Gram-negative bacteria?
Lipopolysaccharide (LPS)
What is the function of plasmids in bacteria?
Provide a selective advantage
Which structure acts as an anchor to bind and pull apart daughter chromosomes during cell division in some bacteria?
Mesosome
Which component of the cytoplasmic membrane is normally involved in electron transport and energy production like in mitochondria?
Lipid bilayer structure
What is the function of peptidoglycan in bacterial cells?
Maintain osmotic pressure
What distinguishes gram-positive from gram-negative bacteria based on the structure components of the cell wall?
Presence of teichoic acid
Which bacteria are characterized by a comma shape?
Vibrio sp.
What determines the shape of bacteria?
Cytoplasmic structures
What type of DNA is the chromosome found in the cytoplasm of bacteria?
Single circular molecule
Which bacteria have a snake-like or spiraled shape?
Treponema
Which type of bacteria are most commonly associated with grape-like clusters?
Staphylococcus sp.
What are plasmids in bacteria?
Smaller, circular, extrachromosomal DNAs
Test your knowledge on the shapes of bacteria with this quiz. Identify different bacterial shapes such as cocci, bacilli, spirilla, and more, and understand their classification. This quiz covers various bacterial morphologies found in nature.
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