It is said the "wonder drug" penicillin was first discovered in 1929 by a Scottish doctor and researcher Alexander Fleming, but the writer of source number 8 says, "that based on records dated back to the 1500's, there were many discoveries leading up to that of Fleming. For instance, in 1874, William Roberts observed that bacterial contamination is generally absent in cultures of the mold Penicillium glaucum." Thus proving, Fleming was not the first to discover penicillin, but the first to be noted for it.
Penicillin is a mold, but not just one. There are many molds under the heading Penicillium, and they all work the same. Some are just faster at growing. The original mold used was Penicillium notatum. Then, once World War II was underway, scientists discovered they were able grow more mold with Penicillium chrysogenum, which was discovered by a laboratory worker named Mary Hunt. After a long time of searching for a new string of mold, she brought in an ordinary supermarket cantaloupe. The special mold was discovered on the cantaloupe. This grew well in a tank, and doubled the amount of penicillin produced. This factual story was given in source number 7.
If you have a chance to read my first source, it states that "penicillin stops bacterial cells from reproduction by inhibiting the synthesis of a new cell wall, which is essential for the survival of bacteria. Penicillin inhibits the enzyme which places essential cross-links between the individual polymer strings of the cell wall." In other words, it would stop the umbilical cord from connecting to the baby's stomach for humans. That proves that the antibiotic penicillin is very powerful. This idea is also stressed in The New Complete Medical and Health Encyclopedia, volume 4, stating that penicillin "interferes with the ability of susceptible bacteria to produce new protective cell walls as cells grow and multiply.".
For the drug Penicillin, there has been few changes since it's discovery.
While Alexander Fleming is credited with penicillin's discovery, many people contributed to the work of making penicillin the wonder drug it has come to be knows as. ... Fleming isolated the substance and named in penicillin. ... Florey began testing penicillin. ... Half the mice were also injected with penicillin. The mice injected with penicillin survived while those that were not died. ...
Penicillin Penicillin is the first naturally occurring antibiotic discovered and the first to be used therapeutically. ... Penicillin was discovered in 1928 by a Scottish Physician, Alexander Fleming. ... Penicillin did have more of an impact on the economy. ... Penicillin works by inhibiting the bacteria cell from forming a cell wall. ... In this sequence, Escherichia coli were incubated in penicillin for 30 minutes. ...
My topic for the top one hundred news stories of the century is Penicillin. ... Penicillin itself can be used to treat many and a wide variety of diseases. ... So as you can see Penicillin can be used on many different diseases. Sir Alexander Fleming discovered Penicillin. ... The substance discharged by the mold he called Penicillin. ...
Amazingly yesterday a "Miracle antibacterial drug" called PENICILLIN was discovered, at St. ... Alexander Fleming was looking at one of his specimens of Staphylococcus aureus (a bacteria) and he noticed there was a mold growing that is called PENICILLIN. ... How does PENICILLIN kill bacteria? PENICILLIN works by destroying the cell wall of the bacteria. ... Chemical formula C16H18N2O5S In the picture above you are looking at a mold of penicillin growing on a bacteria. ...
There are many advantages and disadvantages to the invention of penicillin and other antibiotic medicines. There are numerous rewards to the discovery of penicillin. In 1421, penicillin was used for the first time to save someone's life. ... On average, 150 million perceptions are written a year for penicillin. With the use of penicillin as a meditation, it added 10 years to everyone's life expectancy. ...
He baptizes this substance 'penicillin'.... To this day, penicillin is still being utilized. ... Summary Penicillin is the first of antibiotics and was unintentionally discovered. ... Eventually, the pharmaceutical Penicillin was introduced. ... However, without Penicillin, stronger antibiotics would not be invented. ...
ANTIBIOTICS -Antibiotics can be bacteristatic (paralyze the bacteria) or bactericidal( kill the bacteria) Major Classes of Antibiotics 1) Penicillins 2) Cephalosporing 3) Fluoroquinolones 4) Tetracyclines 5) Macrolides Penicillins - Oldest class of antibiotics - Bactercidal - Effective against bacteria that are sensitive/ susceptible to penicillins - There are 4 groups of penicillins A) Natural: eg. penicillin G&V, narrow spectrum B) Penicillinase Resistant: eg. nafcillin, it is an enzyme produced by certain bacteria that inactivates penicillin, this makes the bacteria resistan...
Certain main problem areas such as Waste Water Treatment Plants, factory farming, overusing general antibiotics (like penicillin), hospital hygiene or just hygiene in general, the difference between poor and rich medical care, use of antibiotics on crops, and the limited ways to kill bacteria enables bacteria to evolve which poses huge problems for future generations. ... For instance, penicillin used to be fairly good at treating Staphylococcus, yet studies in 1999 showed that over 90% of all Staphylococcus strains were immune to penicillin" (Bettelheim). Penicillin used to be called the mira...
The use of animals in the search for new drugs is not always reliable. Physiological differences between species can produce various results. There have been major medical break throughs without the aid of animals. X-rays were developed without the use of animals, as well as the vaccine for yellow f...
