Absence of cell wall in Mycoplasma

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Antibiotics can be ineffective against Mycoplasma because these bacteria lack a cell wall, which is the target for many common antibiotics like penicillin. While the absence of a cell wall allows certain antibiotics to penetrate the bacteria, it also means that antibiotics designed to disrupt cell wall synthesis are not effective. However, there are specific antibiotics that can target Mycoplasma, indicating that while some antibiotics are ineffective, others can successfully treat infections caused by these bacteria.
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I read somewhere that antibiotics can have no effect on Mycoplasma as they do not possesses a cell wall.But How ? Antibiotics should be able to get into the bacteria very easily when there is no cell wall,right ?
 
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There are antibiotics that can target mycoplasma. However, many antibiotics (such as penicillin and its derivatives) work by targeting bacterial proteins involved in cell wall synthesis. These types of antibiotics are ineffective against mycoplasma.
 
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