Which enzyme is responsible for the digestion of compounds like paper and cloth in animals like cows and buffaloes?

What are hormones? Give their classification. State the biological importance of hormones.

What are enzymes?

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

How do enzymes catalyse a chemical reaction in the living system? Explain drug-target interaction taking the example of an enzyme as a target.

Which of the following hormones is responsible for the development of secondary female characteristics and participates in the control of the menstrual cycle?