Bacteria1
As hard as it is to believe, bacteria (also known to scientists as Bacillus, thuringensis) are everywhere; on your hands, on door handles, there's even thousands bacteria on the period at the end of this sentence (That's how small they are). Bacteria have been around for about 3.5 billion years. They were the first life forms on earth and more numerous then any other species we know of. Yet, while they are extremely common, they are also very small. Bacteria can only be seen with microscopes and are usually less then one micron (0.00002 inches) in length. Before I can explain how bacteria affect our world, you need to know more about them. Basically, bacteria are numerous, unicellular organisms that don't contain a nucleus and consist of a capsule and a cell membrane made of peptidoglycan (that's a protein-sugar molecule). Like all cells, bacteria contain DNA, but the DNA in bacteria is different then other organisms, see it's arranged in a single circular chromosome while most cells have several rod shaped chromosomes. Some bacteria also have flagella. This assists the bacteria in moving by beating in a propeller-like motion. Bacteria can be classified in many different ways. Because of their simple cells structure they fit
He was considered the founder of microbiology and set the path for other scientists like Louis Pasteur. Bacteria reproduce by the means of binary fission. Unfortunately antibiotics don't always work now in days, as the bacteria get used to them they become immune and fight back. Other diseases caused by bacteria include tuberculosis, tetanus, cholera and Lyme disease. Doctors are now able to take a small, weakened dose of a disease caused by bacteria and turn it into a vaccine which is given to people to prevent them from ever catching the illness. While many people are unaware of it, there are bacteria throughout your body helping you to survive. We've come far in our knowledge of bacteria from the time, which we didn't even know it existed. ) others may contain starch granules or ribosomes and enzymes. Plus decomposition returns carbon dioxide to the air which enables plants (and the rest of the world) to survive. Of course there's so much more to bacteria other then how they look or what they consist of, bacteria is what holds our world together. Some bacteria form a symbiotic relationship with animals, especially humans. In this process the single chromosome is doubled, the bacteria divides into two cells and each cell receives one chromosome. Of course within each of these three groups there are many variations. By giving your system a tiny dose of the disease it learns how to fight it and becomes immune to it. Since there are so many different types of bacteria it's hard to figure out how exactly how to group them and which characteristics are most important when putting them into categories.
Common topics in this essay:
DNA DNA,
Yogurt Sour,
Robert Koch,
That's Bacteria,
,
Pasteur Pasteur,
shaped bacteria called,
shaped bacteria,
bacteria bacteria,
bacteria actually,
types bacteria,
bacteria called,
dna bacteria,
bacteria didn't,
moneran kingdom,
believe bacteria,
foods fermentation,
|
Acceptance Essays
