$A$ chemical produced by a microorganism that inhibits the growth of another microorganism is called a/an......

Chloromycetin is obtained from

The drug $Cyclosporin$ $A$,used in organ transplantation,is obtained from which of the following?

The bottled fruit juices bought from the market are clearer as compared to those made at home. This is because the bottled juices are cleared by the use of . . . . . . .

$S$ - Statement: The fermentation process of microbes is also used to produce certain vitamins.
$R$ - Reason: Riboflavin is produced by $Ashbya$ $gossypii$.

Which of the following is used for the production of ethanol from starch?