Which is not an example of a prokaryotic cell?

In photosynthetic bacteria,photosynthesis occurs in which of the following structures?

The nucleic acid polymer in the chromosome of bacteria is $..........$.

Choose the wrong statements regarding bacterial cell.
$(i)$ Glycocalyx is the outermost envelope in bacteria.
$(ii)$ The glycocalyx could be a loose sheath called capsule.
$(iii)$ The glycocalyx may be thick and tough called slime layer.
$(iv)$ $A$ special structure formed by the plasma membrane is called mesosome.
$(v)$ Small bristle like fibres sprouting out of the cell are called fimbriae.

Which of the following structures in bacteria helps in attachment to rocks in streams and also to the host tissues?

Which cell organelle is absent in anaerobic bacteria?