The bacterial genome is

$PPLO$ stands for ...

$A$ specialised membranous structure in a prokaryotic cell which helps in cell wall formation,$\text{DNA}$ replication and respiration is :

The extension of the plasma membrane in a prokaryotic cell is known as:

In a bacterial cell,the enzymes for respiration are found in the .........

Assertion $A$: Prokaryotic organisms do not undergo development and differentiation into multicellular forms.
Reason $R$: Prokaryotic organisms are unicellular.
Which option is correct for Assertion $A$ and Reason $R$?