Which organism is used to ripen Roquefort cheese?

Assertion $(A)$: The statin produced by the yeast $Monascus$ $purpureus$ lowers blood cholesterol.
Reason $(R)$: Statins act by competitively inhibiting the enzyme responsible for the synthesis of cholesterol.

Which yeast is used for the production of ethanol from fruit juices?

What is the cause of the flavour of tea and tobacco leaves?

.......... are used in detergent formulations and are helpful in removing oily stains from the laundry.

The enzyme used for alcohol formation by fermentation is