Question

What is the smallest cell in the world?

Answer 1

"Mycoplasma Gallisepticum"
it's diameter is 0.0001 mm.

Answer 2

hello friend here's your answer

●the smallest cell in the world is that of a bacterium...Mycoplasma gallisepticum which has a diameter of 0.0001 micron.

●they also lack cell walls,and have highly variable surface proteins and a distinctive plasma membrane, and are the smallest self-replicating prokaryotes. 

HOPE IT HELPS