Which of the following components gives a sticky character to the bacterial cell?

$A$ hereditary element that may be attached to a chromosome or found free in the cytoplasm is called:

Mitochondria are non-existent in

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 $R$?

The part of the appendage that extends into the cytoplasm is:

Select the wrong statement.