AIIMS 2013 Biology Question Paper for free online practice with solutions

Aspergillus niger carries out fermentation:; to form citric acid. Fungus Trichoderma polysportun produces cyclosporin through fermentative activity. Cyclosporin-A has antifungal, anti-inflammatory and immunosuppressive properties. Saccharomyces cerevisiae (baker’s yeast/brewer’s yeast) is used in production of bread/alcohol. Methanogenic bacteria carry out microbial decomposition of organic matter and aids in gobar gas production.