2b. Bacteria: Good, bad, evil and >> << Have you ever seen dead dinosaurs in your area? Why not? The land formerly covered them. They should be everywhere. There are no dead dinosaurs around partly because bacteria destroyers, which feed on dead plants or animals. Tissue dead organisms are divided into nitrogen-and carbon-molecules. Decomposed animals can be quite rude! But next time you see a dead bird or squirrel, carefully look at it. Then check it again in about a month. There will be nothing left but bones. And that's what happened to the dinosaurs. Well ... Bacteria use some molecule dead body as food, but the rest of the molecule lost in the soil for plants to use for their growth. Different species feed on plants, to build cells for themselves until they die. Then the cycle repeats as bacteria decompose animals. That's why bacteria are so important for life on Earth. Without them, plants and animals could not get the nutrients they require to survive. But the role of bacteria as destroyers not only because people need them around. Most bacteria are harmless and offers useful features live and humanity. Some bacteria such as Escherichia coli
live in the intestines of animals and people to help them digest food and produce vitamins. Other animals (including cows, goats, deer and giraffes) depend even more than people on bacteria to digest food. Billions of them live in the rumens of animals (a special type of stomach), where they break down grass and hay into nutrients the animal can absorb into your blood. The sample from the cow rumen, for example, includes all types of eubacteria, including the spirochete (spiral bacteria) and several species of bacilliform bacteria. Plants also depend on bacteria to help them absorb nutrients into their roots. Plants need nitrogen to build proteins, but atmospheric nitrogen (which is 78% air) can not be used because of its chemical properties. In the soil, and even in native plants most bacteria help convert atmospheric nitrogen into protein. For example, ryzobiy live in the roots of legumes such as peas, clover, and peanuts. Ryzobiy change nitrogen into nitrogen compounds (such as nitrates and ammonia) that plants and then convert into proteins. Ryzobiy bacteria and leguminous plants living in relationships
This means that everyone benefits from living together. The plant uses nitrogen compounds in bacteria for protein and bacteria gets food from plants. Together, these bacteria are called bacteria
also used in many commercial and industrial applications. Bacteria are used all the time in the food industry. Yogurt is not sharp, without the help of bacteria is called
Lactobacillus acidophillus. Yogurt with milk. Lactobacillus strains devour milk, rich type of sugar called lactose, as well as acid production process, which makes yogurt sour. Acid in yogurt can help save it, because the acidity makes yogurt, bad for the other bacteria. The benefits are endless bacteria. One type of bacteria eats oil and is used to help clean up oil spills. Sewage plants use bacteria to clean water. And all other bacteria are a source of essential medicines such as antibiotics. Poor ... So what bad bacteria? The bad news is that sometimes bacteria cause diseases of plants and animals sick and even kill them. Pathogenic bacteria can infect organisms in two different ways. Most cells attack the body itself. Other produce chemicals called
Anthrax is a deadly type of bacteria that infects animals, especially cattle and sheep. Plants can be infected as well as a number of dangerous bacteria. Care is a bacterial disease of plants, which occurs in apple trees and pear .... , Evil >> << People also have to deal with bacterial diseases on a daily basis. Worldwide, hundreds of thousands of people every year die from bacterial infections that can penetrate the body in several ways. Some bacteria enter the body through the intestines. This occurs when eating or drinking contaminated food or liquids. Cholera, for example, a disease caused by bacteria in unsanitary water. Food poisoning caused by eating contaminated by bacteria such as salmonella and
E.coli. Other bacteria enter the body through the lungs. Tuberculosis and pneumonia caused by breathing the air of bacteria. Bacteria may also enter into the body of stab wounds (eg, tetanus) or insect or animal bites and cause different diseases. One of the most ugly episodes in human history has been associated with bacillary bacterium Yersinia plague is called, otherwise known as bubonic plague or Black Death (so named because of dark color on the face of the victim after death). During the 14th century, this tiny organism millions of people died, more than half the population of Europe. Transmitted by the bite of fleas, the plague has spread across the continent, flea-carriers of animals such as mice and rats strattera 25mg. Even now, bubonic plague still occurs in some parts of the world. But it is treatable with antibiotics and does not cause massive epidemics before. However, something else more sinister lurking in the environment. Today, they cause some of the worst diseases known people, including AIDS. These viruses! However, scientists have not even sure they are alive. How do I stop them? Life on Earth needed bacteria, viruses, but we need? | | | | | | | | | | | | | | Copyright 2007 Apex Learning Inc. All rights reserved. Patents D455, D455 and 435, 436. | << >>
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