Which of the following enzymes is not useful in the digestion of proteins?

The enzyme which converts maltose to glucose is:

Enzymes are

Which of the following compounds is used to prepare adipic acid enzymatically in the Green technology developed by $Darth$ and $Frost$?

The incorrect statement regarding enzymes is:

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?