As of the census of 2000, there were 803 people, 359 households, and 194 families residing in the CDP. The population density was 1,348.0/kmÂ² (3,494.4/miÂ²). There were 449 housing units at an average density of 753.7/kmÂ² (1,953.9/miÂ²).
Prokaryotic cells possess simpler structures than eukaryotic cells , since they do not have a nucleus , other membrane bound organelles , or a cytoskeleton . Bacterial cells have two major compartments, the cytoplasm and cell envelope, and may also have exterior appendages , such as flagella or pili. There are two major types of prokaryotes: bacteria and archaea.
For this lecture you should focus on the major concepts and not on the names of the different bacteria. They are mentioned as illustrations of different principles. You will see them all again as the course progresses. Classification Systems The classification of bacteria serves a variety of different functions. major component of the cytoplasmic membrane that is unique to Gram negatives is endotoxin. This component is essential for bacterial survival. Endotoxin has three components: the lipid A moiety, the highly conserved core polysaccharide, and the species specific O antigen (also polysaccharide).