Home Biology The Living World NCERT Which one of the following prokaryotes lack …
Biology The Living World NCERT Single Correct MCQ
Published on: August 12, 2026

Which one of the following prokaryotes lack cell wall?

A
Virus
B
Cyanobacteria
C
Mycoplasma
D
Protozoa

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Text Solution

Verified by Experts
The correct answer is:
C

• Mycoplasma is a genus of bacteria that naturally lacks a cell wall.

• Despite being prokaryotes, they are unique because they are only bounded by a unit plasma membrane.

• The absence of a cell wall makes them resistant to antibiotics like penicillin, which function by targeting cell wall synthesis.

• They are considered the smallest living cells and are pleomorphic (capable of changing shape) due to the lack of a rigid outer wall.

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