Identify the microorganism which is responsible for the production of a bioactive molecule used as a blood cholesterol lowering agent:

Step-by-step solution

Statins are bioactive molecules that are widely used as blood cholesterol lowering agents. They act by competitively inhibiting the enzyme responsible for the synthesis of cholesterol. Statins are produced by the yeast Monascus purpureus. Among the other options, Trichoderma polysporum produces cyclosporin A (an immunosuppressive agent), Streptococcus produces streptokinase (a clot buster), and Aspergillus niger produces citric acid. Answer: Monascus purpureus