Q17 of 40 Page 1

State the medicinal value and the bioactive molecules produced by Streptococcus, Monascus and Trichoderma.

OR


What are methanogens? How do they help to generate biogas?



Streptococcus – It produces enzyme Streptokinase which is modified by genetic engineering then it is used as a ‘clot buster’ for removing clots from the blood vessels of patients who have undergone myocardial infaction leading to heart attack.


Monascus Monascus purpureus produces statins which have been commercialized as blood cholesterol lowering agents.


Trichoderma Trichoderma polysporum produces cyclosporin A which is used as immunosuppressive agent in organ-transplant patients.


OR


Certain bacteria grow on anaerobically on cellulosic material, produce large amount of methane along with carbon dioxide and hydrogen. These bacteria collectively are called methanogens.


Example – Methanobacterium


These methanogens are grown on slurry which comprises of cattle dung where they act upon the dung and lead to its breakdown and release of gases like methane and carbon-dioxide. Thus, methanogens are used in biogas production.


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