Question

Prokaryotes, have a cell wall surrounding the cell membrane except in

• A. Bacteria
• B. Mycoplasma
• C. Blue green algae
• D. All of the above

Answer 1

The correct option is B Mycoplasma

Prokaryotes are the primitive organisms which lacks membrane-bound organelles and nucleus. Some bacteria do not possess cell wall - Mycoplasma.

Mycoplasma species are widespread examples and some can be intracellular pathogens that grow inside their hosts. This bacterial lifestyle is called as parasitic or saprophytic. Cell walls are unnecessary here because the cells only live in the controlled osmotic environment of other cells.
So, the correct answer is option B.