Question
Download Solution PDFWhich bacteria have a thick cell wall with several layers of peptidoglycan and teichoic acid?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFKey Points
- Staphylococcus aureus has a thick cell wall composed of several layers of peptidoglycan and teichoic acid.
- The thick peptidoglycan layer provides structural strength and rigidity to the bacterial cell wall.
- Teichoic acid, which is embedded in the cell wall, plays a role in cell wall maintenance and ion regulation.
- These features are characteristic of Gram-positive bacteria, to which Staphylococcus aureus belongs.
Additional Information
- Salmonella enterica, Pseudomonas aeruginosa, and Escherichia coli are examples of Gram-negative bacteria, which have a thinner peptidoglycan layer and an outer membrane.
- Gram-positive bacteria, like Staphylococcus aureus, stain violet in the Gram staining procedure due to their thick peptidoglycan layer.
- The structure of the cell wall in Gram-positive bacteria makes them more susceptible to certain antibiotics, such as penicillin, which targets peptidoglycan synthesis.
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