NEET BIOLOGY

Detailed explanation-1: -From 1945–1955 the development of penicillin, which is produced by a fungus, along with streptomycin, chloramphenicol, and tetracycline, which are produced by soil bacteria, ushered in the antibiotic age (Figure 1).

Detailed explanation-2: -The antibiotic is the first of its kind to be made by the yeast Saccharomyces cerevisiae, which is commonly used in biotechnology to make drugs. The fungus Penicillium chrysogenum makes penicillin using an enzyme called a non-ribosomal peptide synthetase, which joins amino acids together into single molecules.

Detailed explanation-3: -Antibiotics produced by the fungus had stopped it from growing. This led to the discovery of the first antibiotic, penicillin, as we know it today. Penicillin, which fights bacterial infection, is released by strains of the mould Penicillium.

Detailed explanation-4: -Today penicillin is synthesized in a lab using penicillium mold, which naturally produces penicillin. The mold is grown with sugars and other ingredients through deep-tank fermentation until the penicillin is able to be separated from the mold.

Detailed explanation-5: -Alexander Fleming famously discovered the first antibiotic, penicillin, in 1928 while working at St Mary’s Hospital Medical School, which is now part of Imperial College London. The antibiotic was produced by a mould in the genus Penicillium that accidentally started growing in a Petri dish.