6 Questions
What is the function of the cell wall in bacteria?
To provide a rigid structure and characteristic shape to the cell
What is the relationship between the cell wall and the plasma membrane in bacteria?
The cell wall is located outside the plasma membrane
What is the purpose of the mesosomal membrane vesicles in bacteria?
To provide additional surface area for the plasma membrane
What is the main difference between the cell envelope of Gram-positive and Gram-negative bacteria?
Gram-negative bacteria have a more complex cell envelope
What technique is used to visualize the fracture planes of the cell envelope in Gram-negative bacteria?
Electron microscopy of freeze-fractured cells
Which of the following is NOT a principal surface layer of the bacterial cell?
Nucleus
Learn about the techniques used to identify the surface layers of bacterial cells including light microscopy, electron microscopy, and biochemical characterization. Explore the principal surface layers such as capsules, cell walls, plasma membranes, and mesosomal structures.
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