What are some structural characteristics of bacteria?

bacteria are the most common organisms in the world, with estimated five bacteria, Nelilion (5 x 10 ^{30 ) on Earth. "Bacteria" means "small staff" in Greek. They come in different shapes and sizes - rods, balls, spirals, spirals, blogs, etc. The biggest bacteria are half a millimeter long (although it is very atypical) and the smallest is only 0.3 microns across. Typical size is between 0.5 and 5.0 microns. The characteristics of bacteria are among the various in any domain of life - the affinity between two types of bacteria is often much less than the relationship between the two given metazoans, says man and slug.}

Although they infect everything and can kill billions of other organisms. Although they were once considered to be simple cytoplazzal bags, bacteria actually have complexity, simply not as much as found in eukaryotic (large, complex, nucleat) cells. The basic structure is coated with a lipid membrane. In the capsules there is bacterial "blood", cytoplasma; Plasmids, semi -independent inner loops of DNA, which can bring bacteria at a time of crisis; ribosomes that show the "will" bacterial DNA by structural complex structures; and irregularly shaped body containing bacterial DNA, called nucleoid. These structural characteristics of bacteria have been maintained for billions of years.

Although relatively simple, what complexity should be fascinating in the bacterial structure and is responsible for the diverse characteristics of bacteria that we see in nature. One of the key elements that are responsible for the characteristics of bacteria are their inner plasmids. These short DNA loops are exchanged as business cards between bacteria and as magic, providing them with unique abilities. For example, one plasmide can coded a protein that poisons all organisms in the area, with the exception of bacteria and its immediate attachmentamprence. This can be quite useful for bacteria trying to cut their own niche from limited space and resources.

Other properties of bacteria come from bacterial DNA, which is somewhat less modifiable than plasmids. These include ultrastructure features such as the presence and number of drank (organ used by bacteria to engage in conjugation with other the same types), the number and size of the flagella (important for movement in some species), the nature of the prokaryotic cytoskeleton (which determines the overall structure) and others. Since bacteria are so small and diverse, we still have to learn a lot about how they work, and modern molecular genetics and advanced microscopy show the way.