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Questions and Answers
What characteristic distinguishes prokaryotic cells from eukaryotic cells?
What characteristic distinguishes prokaryotic cells from eukaryotic cells?
- Number of cells
- Type of cell wall
- Size of the cell
- Presence of a nucleus (correct)
Which type of prokaryotic organism is known for surviving in extreme environments?
Which type of prokaryotic organism is known for surviving in extreme environments?
- Bacteria
- Eukaryotes
- Viruses
- Archaea (correct)
What is the composition of the cell wall in bacteria?
What is the composition of the cell wall in bacteria?
- Polysaccharides
- Chitin
- Peptidoglycan (correct)
- Cellulose
How do eukaryotic cells differ from prokaryotic cells in size?
How do eukaryotic cells differ from prokaryotic cells in size?
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Which group of extremophiles thrives in high-temperature environments?
Which group of extremophiles thrives in high-temperature environments?
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Study Notes
Prokaryotic Cells
- Characterized by the absence of a nucleus and membrane-bound organelles.
- Typically unicellular organisms.
- Examples include bacteria and archaea.
Bacteria/Bacterium
- Most ubiquitous and smallest known cells.
- Found in diverse environments, including soil, water, and within other living organisms.
- Possess a cell wall primarily made of peptidoglycan.
Archaea/Archaeon
- Thrive in extreme environments, classified as extremophiles.
- Their cell wall consists of polysaccharides.
- Examples of extremophiles include:
- Cryophiles: Adapted to cold habitats.
- Halophiles: Survive in high-salinity environments.
- Thermophiles: Endure high-temperature conditions.
Eukaryotic Cells
- Generally larger than prokaryotic cells, roughly ten times bigger than bacteria cells.
- Can be unicellular or multicellular organisms.
- Contain a nucleus that encases their DNA.
- Have various membrane-bound organelles, allowing for compartmentalization of cellular functions.
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Description
Explore the fascinating world of prokaryotic cells, including bacteria and archaea. This quiz delves into their characteristics, habitats, and unique cell structures. Learn about the smallest known cells and their remarkable adaptations to extreme environments.
