Question

Mycoplasmas are not sensitive to
a. Penicillin
b. Streptomycin
c. Erythromycin
d. Neomycin

Answer 1

Hint: Mycoplasmas also called plural mycoplasmas. Around the cell membrane the genus of bacteria that lack a cell wall is called Mycoplasma. These are a special type of species, where they are the smallest bacterial cells yet discovered.

Complete answer:
Penicillin is a common antibiotic. And it is used to treat bacterial infections. It is one of the first to be discovered and used to treat respiratory tract infections, scarlet fever, and ear, skin, gum, mouth, and throat infections. By using this, one can recover soon. And it worked well against staphylococci and streptococci. Many strains of bacteria are now resistant. In the laboratory, many chemists keep on improving their structure to make it more effective towards the infections. Mycoplasmas are not sensitive to Penicillin as Penicillin attack the cell wall of the organism.

Hence, the correct answer is option (A).

Additional information:
• Streptomycin belongs to a class of drugs that is used to remove stress, also it is known as aminoglycoside antibiotics.
• Bacterial infections can be widely treated by this Erythromycin. Preventing certain bacterial infections can be done by this, such as wounds, etc. Erythromycin is also called a macrolide antibiotic.
• Neomycin was found in many topical medications such as creams, ointments, and eye drops which makes us relief from such disasters. Neomycin belongs to the class called aminoglycoside class of antibiotics.

Note: Mycoplasma is the smallest microorganisms capable of reproduction. Having no cell wall Mycoplasma differs from other bacteria. Mycoplasma cellular membrane is not surrounded by the cell wall. Due to the absence of a cell wall, they are resistant to certain antibiotics like Penicillin. Mycoplasmas will survive without oxygen and they have various shapes. For example, genitalium is flask-shaped and others have several shapes.