Which of the following statements is true concerning Alexander Fleming and his antimicrobial discovery? View Available Hint(s)for Part A Immediately following its discovery, the first antibiotic was mass produced and made readily available to the public. The first antibiotic was discovered by accident when a contaminating mold killed a culture of Staphylococcus aureus. Alexander Fleming discovered the first antibiotic, bacitracin, made by the bacterium Bacillus. Alexander Fleming sought an antimicrobial compound that could be used as an alternative to amputation in patients who suffered from gas gangrene caused by Clostridium perfringens.

Read the passage.Discovering PenicillinIn 1928, bacteriologist Alexander Fleming was studying Staphylococcus, a type of bacteria that can cause serious infections. He grew the bacteria in small containers called petri dishes. One day he noticed that mold had accidentally been introduced into one of the petri dishes and was startled to see that there were no bacteria around the moldy area. Fleming correctly deduced that the mold had had an antibacterial effect; somehow it had prevented the bacteria from growing. Fleming identified the mold as the strain Penicillium notatum and called its antibacterial ingredient—which he was unable to successfully extract—penicillin. Fleming's discovery of penicillin's unique effect led to the eventual finding that it could be used to treat infections. Several years after his initial observation, scientists built on his work by extracting penicillin from mold and demonstrating its effectiveness as a treatment.What is the main, or central, idea of the passage?Fleming noticed that when a strain of mold inadvertently came into contact with a petri dish, the mold prevented bacterial growth.Fleming's chance observation of the antibacterial properties of mold led to the discovery of penicillin as a treatment.Fleming came up with the name for penicillin, the bacteria-fighting ingredient in the Penicillium notatum mold.Save answer

The main, or central, idea of the passage is Fleming's chance observation of the antibacterial properties of mold led to the discovery of penicillin as a treatment. How does the detail in bold develop the main idea?In 1928, bacteriologist Alexander Fleming was studying Staphylococcus, a type of bacteria that can cause serious infections. He grew the bacteria in small containers called petri dishes. One day he noticed that mold had accidentally been introduced into one of the petri dishes and was startled to see that there were no bacteria around the moldy area. Fleming correctly deduced that the mold had had an antibacterial effect; somehow it had prevented the bacteria from growing. Fleming identified the mold as the strain Penicillium notatum and called its antibacterial ingredient—which he was unable to successfully extract—penicillin. Fleming's discovery of penicillin's unique effect led to the eventual finding that it could be used to treat infections. Several years after his initial observation, scientists built on his work by extracting penicillin from mold and demonstrating its effectiveness as a treatment.It describes Fleming's everyday duties as a researcher.It indicates the unintentional nature of Fleming's discovery.It criticizes Fleming's procedures as unsanitary.Save answer

Which one thing is not true about antibiotics?AThe term “antibiotic” was coined by Selman Waksman in 1942BFirst antibiotic was discovered by Alexander FlemmingCEach antibiotic is effective only against one particular kind of germDSome persons can be allergic to a particular antibiotic

Recall the name of the person who discovered the first antibiotic.

Who is credited with discovering penicillin?