Sucrose $\quad$ $\quad$ $\quad$ $\quad$ $\quad$ $\quad$ $\quad$ Glucose $\quad$ Fructose
$C _{6} H _{12} O _{6} \stackrel{\text { Enzyme B }}{\longrightarrow} 2 C _{2} H _{5} OH +2 CO _{2}$
Glucose
In the above reactions, the enzyme $A$ and enzyme $B$ respectively are :-

Asn - Ser $+\,\underset{(excess)}{\mathop{{{(C{{H}_{3}}CO)}_{2}}O}}\,\xrightarrow{NE{{t}_{3}}}P$