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Questions and Answers
What type of cell wall is found in bacteria?
What aids in the locomotion of some prokaryotic cells?
Which structures help maintain the shape of prokaryotic cells?
Which of the following statements about prokaryotic cell reproduction is true?
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What influences the susceptibility of bacteria to antibiotics?
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Which of the following statements about pili is correct?
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Which cytoskeletal elements are found in prokaryotic cells?
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What feature distinguishes eukaryotic cells from prokaryotic cells?
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Study Notes
Prokaryotes
- Some prokaryotic species contain simple organelles or infoldings in their structure.
- Cytoskeleton:
- Lacks eukaryotic cytoskeleton elements but possesses tubulin and actin filaments.
- These filaments are crucial for maintaining cell shape and preventing excessive uptake of substances.
- Cell Wall:
- Positioned outside the plasma membrane, providing structure and maintaining cell shape.
- Bacterial cell walls are composed of peptidoglycan (murein), while Archaea have cell walls made of pseudomurein.
- The composition of the cell wall affects bacteria's susceptibility to antibiotics.
- Flagella:
- Present in certain prokaryotic cells, which can have one or multiple flagella.
- Flagella facilitate locomotion through rotary motion, effectively propelling the cell.
- Pili:
- Pili are protein filaments on the prokaryotic cell surface.
- Serve functions in movement and material exchange between cells.
- Reproduction:
- Prokaryotic reproduction occurs asexually via binary fission.
- Binary fission is distinct as it does not involve mitosis.
Eukaryotic Cells
- Eukaryotic cells contain a membrane-bound nucleus, differentiating them from prokaryotes.
- They exhibit greater complexity, enabling the creation of specialized compartments within the cell.
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Plant Cells:
- Specific cell type that showcases the additional complexity found in eukaryotes (details not provided).
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Description
Test your knowledge on prokaryotic cells, focusing on their structure, organelles, and cytoskeleton components. This quiz will help you understand the unique features of prokaryotes compared to eukaryotes, including their cell wall composition and role in maintaining cell shape.
