Which one of the following is sometimes present in bacterial cell?

Capsule is sometimes present in bacterial cell. Capsule is a protective layer that surrounds the bacterial cell and is composed of polysaccharides or glycoproteins. It helps the bacteria to evade the host immune system by preventing phagocytosis, and also provides protection against desiccation and other environmental stressors. However, not all bacterial species possess a capsule.

Most of the bacterial cells have cell wall made up of peptidoglycan. Cell membrane is present in all living cells. Genophore is the genetic material for bacterial cell which is a double stranded, circular DNA.