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Scottish biologist and pharmacologist Alexander Fleming (pictured) discovered penicillin when he noticed a bacteria-killing mould growing in his laboratory.
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Alexander Fleming
Scottish physician and microbiologist (1881–1955)
Sir Alexander Fleming was a Scottish physician and microbiologist, best known for discovering the world's first broadly effective antibiotic substance, which he named penicillin. His discovery in 1928 of what was later named benzylpenicillin from the mould Penicillium rubens has…Source: Wikipedia (CC BY-SA)
Penicillin
Group of antibiotics derived from Penicillium fungi
Penicillins are a group of β-lactam antibiotics originally obtained from Penicillium moulds, principally P. chrysogenum and P. rubens. Most penicillins in clinical use are synthesised by P. chrysogenum using deep tank fermentation and then purified. A number of natural…Source: Wikipedia (CC BY-SA)
Mold
Wooly, dust-like fungal structure or substance
A mold or mould is one of the structures that certain fungi can form. The dust-like, colored appearance of molds is due to the formation of spores containing fungal secondary metabolites. The spores are the dispersal units of the fungi. Not all fungi form molds. Some fungi form…Source: Wikipedia (CC BY-SA)