10 Questions
What is the domain to which bacteria belong?
Bacteria
Which domain contains extremophiles that live in extreme environments?
Archaea
What characteristic defines bacteria as prokaryotes?
Lack of a nuclear envelope
What is the size range of the smallest unicellular eukaryotes?
10 to 100 microns
What does it mean for bacteria to be unicellular?
Composed of a single cell
Which type of bacteria does not react to the Gram stain due to their thin peptidoglycan layer and outer lipid layer?
Gram-negative bacteria
Which bacterial shape is referred to as cocci?
Sphere-shaped
What is the process through which bacteria reproduce?
Binary fission
Which bacteria can enter a cryptobiotic, or dormant, stage until environmental conditions are favorable for their growth?
Endospore-forming bacteria
Which bacterial species is responsible for the sexually transmitted infection known as syphilis?
Treponema pallidum
Explore the classification and characteristics of bacteria, including its domain, genetic differences, and anatomical features. Learn about the separation of Bacteria and Archaea into distinct domains and the current classification system with three domains.
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