Microbiology
Structure of Bacterial Cell
Intracellular structures
The bacterial cell is surrounded by a cell membrane (also known as a lipid, cytoplasmic or plasma membrane).
Bacteria
Bacteria constitute a large domain of prokaryotic microorganisms. Typically a few micrometres in length, bacteria have a number of shapes, ranging from spheres to rods and spirals. Bacteria were among the first life forms to appear on Earth, and are present in most of its habitats. Bacteria inhabit soil, water, acidic hot springs, radioactive waste, and the deep portions of Earth's crust. Bacteria also live in symbiotic and parasitic relationships with plants and animals.
