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?

Match the following enzymes given in Column-$I$ with the reactions they catalyse given in Column-$II$.

Column-$I$ (Enzymes)	Column-$II$ (Reactions)
$A$. Invertase	$1$. Decomposition of urea into $NH_3$ and $CO_2$
$B$. Maltase	$2$. Conversion of glucose into ethyl alcohol
$C$. Pepsin	$3$. Hydrolysis of maltose into glucose
$D$. Urease	$4$. Hydrolysis of cane sugar
$E$. Zymase	$5$. Hydrolysis of proteins into peptides

$C_{12}H_{22}O_{11} + H_2O \stackrel{\text{Enzyme A}}{\longrightarrow} C_6H_{12}O_6 + C_6H_{12}O_6$
$\text{Sucrose} \quad \quad \quad \quad \quad \quad \quad \quad \quad \quad \quad \text{Glucose} \quad \quad \quad \quad \text{Fructose}$
$C_6H_{12}O_6 \stackrel{\text{Enzyme B}}{\longrightarrow} 2C_2H_5OH + 2CO_2$
$\text{Glucose}$
In the above reactions,the enzyme $A$ and enzyme $B$ respectively are :-

The enzyme responsible for the conversion of proteins to $\alpha$-amino acids is

Which of the following statements about enzymes are correct?
$(i)$ They lack nucleophilic groups.
$(ii)$ They are highly specific.
$(iii)$ They catalyze reactions by lowering the activation energy of the reaction.
$(iv)$ Pepsin is a proteolytic enzyme.

Which one of the following statements is wrong in the case of enzyme catalysis?