What is the primary function of enzymes in living systems?

Which site of an enzyme is called an allosteric site?

Which enzyme converts glucose and fructose both into ethanol?

Observe the following reactions:
$I$) $\text{Sucrose} (aq) + H_2O \xrightarrow{x} \text{glucose} + \text{fructose}$
$II$) $\text{Glucose} (aq) \xrightarrow{y} \text{ethanol} + CO_2$
What are $x$ and $y$ respectively?

Name the enzymes and write the reactions involved in the preparation of ethanol from sucrose by fermentation.

Starch is converted into maltose by the