The compound shown in the image is:

Which of the following statements are correct?
$I$. Binding of inhibitor at allosteric site changes the shape of the active site.
$II$. Shape of the receptor does not change after attachment of chemical messenger to it.
$III$. $A$ chemical messenger gives message to the cell by entering it.
$IV$. Erythromycin is an example of bacteriostatic antibiotic.

The treatment of diseases using chemicals is called .......

Which of the following artificial sweeteners has the lowest sweetness value?

What are the chemicals (drugs) used to reduce fever called?

In which of the following,is the drug class correctly matched with the criteria of drug classification?