18 Questions
Which domain includes extremophiles that live in extreme environments?
Archaea
What are the two main domains of prokaryotes?
Bacteria and Archaea
Which of the following is true about halobacteria?
They are salt-loving bacteria
What is the major difference between gram-negative and gram-positive bacteria?
Cell wall composition
Which group of prokaryotes are known for their metabolic diversity?
Proteobacteria
What characteristic distinguishes major bacterial shapes from each other?
Cell wall thickness
What is the major difference in cell wall composition between Gram-positive and Gram-negative bacteria?
Gram-positive bacteria have a thicker peptidoglycan wall
Which bacterial group is known for containing less peptidoglycan in their cell wall?
Proteobacteria
Which bacterial phylum is Proteobacteria classified under?
Beta
What is the shape associated with bacilli in terms of bacterial morphology?
Rod-shaped
Which bacterial group is represented by E.coli, Pseudomonas, and Salmonella?
Proteobacteria
What is the color that Gram-negative bacteria stain when subjected to Gram staining?
Pink
Which major group of prokaryotes is characterized by having a gelatinous layer that aids in attachment and protects from the immune system?
Gram-negative bacteria
What is the main difference between Gram-positive and Gram-negative bacteria?
Cell wall composition
Which characteristic distinguishes Proteobacteria from other major groups of prokaryotes?
Use of oxygenic and anoxygenic photosynthesis
Which major bacterial shape is characterized by slender, rigid, helical structures composed of flagellin proteins?
Spirilla
What distinguishes Gram-positive bacteria from Gram-negative bacteria in terms of their response to environmental stress?
Development of endospores
What is the defining characteristic that divides most species of bacteria into two major groups: Gram positive and Gram negative?
Cell wall composition
Learn about the distinctions between prokaryotic and eukaryotic cells, including differences in size, cellular structure, and multicellularity. Explore how prokaryotes can form associations and biofilms as opposed to eukaryotes. This quiz covers key characteristics that set prokaryotes apart from eukaryotes.
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