Moving in, the next part of the cell is the cytoplasmic membrane. This is where both passive and active transport is really necessary for a cell. For starters, the cytoplasmic membrane is only semi-permeable, that is only small and uncharged particles can get through the membrane undetected. This helps the cell maintain its homeostasis from osmotic pressures. It also houses cytosol, which is the liquid portion of the cell that allows easy movement of some particles.
The next major structure are the ribosomes. Bacterial ribosomes are the sites where protein synthesis is housed. This is where enzymes are created so that the cell can function properly. There are thousands of these sites all over the cell and are only 70S. All ribosomes are composed of two things, polypeptides and ribosomal RNA.
All parts of the are important and as are the fact that they make up why the Salmonella family are living