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 :-

$(A)$ ${X}$ is a reducing sugar and ${Y}$ is a non-reducing sugar

$(B)$ ${X}$ is a non-reducing sugar and ${Y}$ is a reducing sugar

$(C)$ The glucosidic linkages in ${X}$ and ${Y}$ are $\alpha$ and $\beta$, respectively

$(D)$ The glucosidic linkages in ${X}$ and ${Y}$ are $\beta$ and $\alpha$, respectively

$(1)$ Denaturation of proteins causes loss of secondary and tertiary structures of the protein.

$(2)$ Denaturation leads to the conversion of double strand of $DNA$ into single strand.

$(3)$ Denaturation affects primary structure which gets distorted.