Which among the following does not have a cell wall ?

Options

A. Euglena
B. Paramecium
C. Gonyaulax
D. Mycoplasma

Answer

4

Explanation

Mycoplasma is a genus of bacteria that lacks a cell wall around their cell membrane. Without a cell wall, they are unaffected by many common antibiotics such as penicillin or other beta-lactam antibiotics that target cell wall synthesis. In comparison to other prokaryotes, they are consequently placed in a separate class Mollicutes(mollis, soft, cutis, skin).