Question

Name an entity that lacks cell wall?

Answer 1

Mycoplasma:

1. The organisms without cell wall & can live without oxygen are called mycoplasmas.
2. Mycoplasma is said to be the simplest and the smallest of free-living prokaryotes.
3. They were discovered and identified in the pleural fluid of cattle suffering from pleuropneumonia.
4. They are often called the PPLO (Pleuropneumonia like organisms).
5. The size ranges from 0.1-0.15 μm. A cell wall is also absent.
6. The plasma membrane is seen to form the outer boundary of the cell.
7. Due to the absence of cell wall, organisms can change their shape and are pleomorphic.
8. They are not even sensitive to penicillin because of the lack of cell wall.