The correct option is D a b c d
(D) iii iv i ii
Saccharomycescerevisiae− Commercial production of ethanol
Yeast (Saccharomycescerevisiae) yields ethanol and carbon dioxide on fermentation. Hence, it is utilised for the production of ethanol at commercial levels.
Monascuspurpureus− Production of blood cholesterol lowering agents
Statins are blood cholesterol lowering agents produced by the yeast, Monascuspurpureus. It is a competitive inhibitor of the enzyme that catalyses the biosynthesis of cholesterol, thus helping in lowering blood cholesterol levels.
Trichodermapolysporum− Production of immunosuppressive agents
Trichodermapolysporum is a fungus that is employed to produce Cyclosporin A which has immunosuppressive properties. Therefore, it is used to prevent tissue rejection after transplantation.
Propionibacteriumshermanii− Ripening of Swiss
cheese
Propionibacteriumshermanii is responsible for producing large holes in swiss cheese by releasing CO2.