Antibiotics :: essays research papers fc

Antibiotics     An antibiotic, is defined to be a drug produced by definite microbes.Most doctors use antibiotics to financial aid fight the germs in a patient. Antibiotics atomic number 18 obtained from plants, fungi, air, water, soil, just ab surface anything on earth.Antibiotics kill and attack the germ or virus in the body, but do not hurt the sympathetic cells, ordinarily. The antibiotics be used to regale many various types ofdiseases, such as tuberculosis, syphilis, and several kinds of infections.     People have been using antibiotics for more(prenominal) than 2,500 years. They usedmolds to help cure some skin infections and rashes. It was in the late 1800sthat the real drive of medicine began. Louis Pasteur discovered that bacteriumwas the cause of disease, and proved wrong the system of spontaneous generation.After him there was Robert Koch, who developed a method of separate and growingbacteria. Scientists tried developing drugs that could kill microbes, but theyproved to be either dangerous or in powerful.     In 1928 there was a find by Alexander Fleming. He detected that asubstance he called "penicillin" destroyed bacteria. Then in the late 1930s,two British scientists invented a method of extracting penicillin from the mold.This was the start of developing new drugs to treat diseases and bacteria.     Over the years, many thousands of antibiotic material have beenfound in nature as well as produced chemically but, there atomic number 18 few that are safeand useful. However the ones that are safe and effective have relieve many livesand have helped extend life expectancy.     Right now, there is more than 70 different kinds of antibiotics in use.Most antibiotics are used to treat infections, some for fungi and protozoa, butantibiotics are not usually effective against viruses. So they have developedother methods such as vaccine s against viruses.     Antibiotics make believe by one of three ways, they can one, prevent the cell paries from growing two, obstruct the cell membrane or three scatter thechemical processes. When the antibiotic prevents the cell wall from forming, theantitoxin surrounds the bacterias membrane, and then it forms a situated wall thatstops the cell wall from splitting open, which would produce other cell. Thehumans cells are not hurt by this because human cells do not have cell walls.     If the antibiotic obstructs the cell membrane, which controls the flowof items in and out of the cell, then essential nourishment can escape the cell.Then a toxic substance could enter the cell killing it. Human cells are noteffected by this method because the antitoxin only effects the microbial cells.     If the antitoxin disrupted the chemical process, then the microbe cannot