5 Questions
What is peptidoglycan composed of in the bacterial cell wall?
Glycan and tetrapeptide side chains
What is the function of the bacterial cell wall?
Supporting the weak cytoplasmic membrane against high internal osmotic pressure
Which type of bacteria has a thick layer of peptidoglycan in their cell wall?
Gram positive bacteria
What allows gram-positive bacteria to retain the crystal violet dye after washing with alcohol in gram staining?
Lipoteichoic acids
What is the role of teichoic acids in gram-positive cell walls?
Spanning the cell wall and linking to the cell membrane
Test your knowledge of bacterial cell anatomy, including the differences between gram positive and gram negative bacteria, and the functions and structure of the cell wall.
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