Chapter 3 of the 12th grade English curriculum, called “Sir Alexander Fleming,” has short questions and answers that are clear and helpful. This chapter talks about Sir Alexander Fleming, a well-known person in the field of medicine, and his life and work. Students can learn more about Fleming’s great finding of penicillin and how it changed medicine by focusing on this chapter. The short answers to the questions give important information about what Fleming did and how important his work was. “12th Class English Ch 3 Sir Alexander Fleming” is a great resource for learning and exploring, whether you’re studying for a test or just want to learn more.
Sir Alexander Fleming 2nd Year Summary
This article by Patrick Pringle is very helpful. The author says that Pasteur found germs and Lister got rid of them. They both changed the way people thought about and did health. Luis Pasteur found out that germs cause that disease. Lister came up with the first way to keep germs from getting into a patient’s skin while they were being operated on. He used carbolic acid to kill germs on his hands and on the skin of his patients. He also used carbolic acid to clean his instruments. We call this the “antiseptic method.”
The cleaning method couldn’t work because it hurt living cells as well. Later, leucocytes, which are part of the body’s defense system, were found. The problem was to find something that would kill the germs without hurting the leucocytes.
Sir Alexander Fleming joined the staff of St. Mary’s Hospital’s Inoculation Department. Then, for eight years, he worked in Wright’s lab. He tried to find a way to help the leukocytes fight germs that were getting into the body. By 1914, the aseptic method had taken the place of Lister’s sterile method.
Chemical antiseptics were the only way medical staff knew how to treat cuts that were getting worse. People tried out different drugs, and each one became popular for a while before giving way to the next.
At age 37, Fleming went back to St. Mary’s and continued his study. He found penicillin, which is a natural antibiotic and not a drug like carbolic acid.
The trouble was getting the penicillin to work better so that it could be used to treat the disease. The Oxford team did this job and did it well. In 1945, Fleming was given the Nobel Prize for what he had found.
Fleming was thanked a lot for this finding, but he said in a humble way that the thanks were not his. He said it was a gift from God. He said that penicillin was made by nature and that I had been blamed for making it.