Question

Mycoplasma are not sensitive to

• A. Streptomycin
• B. Penicillin
• C. Erythromycin
• D. Neomycin

Answer 1

The correct option is B Penicillin

Mycoplasma is a single-celled, prokaryotic organism. The organism lacks the cell wall. The antibiotic penicillin interferes with the process of cell wall synthesis in which the N-acetyl muramic acid, N-acetyl glucosamine and amino acids in peptidoglycan are linked. The antibiotic interferes with the process of linking of these molecules in the cell wall. Since there is no cell wall in the Mycoplasma, there is no effect of penicillin.

Thus, the correct answer is option B.