Which class of antibiotics is used to treat Mycoplasma pneumoniae?

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Multiple Choice

Which class of antibiotics is used to treat Mycoplasma pneumoniae?

Mycoplasma pneumoniae has no cell wall, so antibiotics that disrupt cell wall synthesis won’t be effective. Macrolides work by binding to the 50S ribosomal subunit and blocking protein synthesis, which stops the bacteria from growing and replicating. This mechanism matters here because it targets the organism’s ability to make essential proteins, and macrolides penetrate the respiratory tract well, making them a reliable choice for atypical pneumonia like Mycoplasma. In contrast, drugs that inhibit cell wall synthesis are ineffective since there’s no wall to target in Mycoplasma. Aminoglycosides aren’t ideal either because they require oxygen for uptake and don’t reliably act against atypical, cell-wall–deficient organisms.

Mycoplasma pneumoniae has no cell wall, so antibiotics that disrupt cell wall synthesis won’t be effective. Macrolides work by binding to the 50S ribosomal subunit and blocking protein synthesis, which stops the bacteria from growing and replicating. This mechanism matters here because it targets the organism’s ability to make essential proteins, and macrolides penetrate the respiratory tract well, making them a reliable choice for atypical pneumonia like Mycoplasma.

In contrast, drugs that inhibit cell wall synthesis are ineffective since there’s no wall to target in Mycoplasma. Aminoglycosides aren’t ideal either because they require oxygen for uptake and don’t reliably act against atypical, cell-wall–deficient organisms.

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