In the gram-positive bacterial cell wall, the tetrapeptides that extend from the peptidoglycan layers are linked by peptide inter-bridges.
Gram-negative bacteria are bacteria that produces a positive result in the Gram stain test.
Gram-positive bacteria include staphylococcus and streptococcus.
The cell walls of gram positive bacteria are composed mainly of peptidoglycan with several peptidoglycan layers forming around the cell membrane.
Peptide inter-bridges link the tetrapeptides that extend from the peptidoglycan layers of the cell wall.
In conclusion, gram-positive bacteria have peptidoglycan layers.
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