The esterase enzyme belongs to which of the following classes?

At boiling temperature, an enzyme is:

The first enzyme was discovered in . . . . . . .

The diagram illustrates energy changes in an enzyme-controlled reaction. Which of the following represents the lowering of the activation energy?

Jacob and Monod named those enzymes allosteric whose activity is regulated by

The following reaction depicts the activity of a particular class of enzymes:
$X-Y$ attached to $C-C$ (Substrate) $\xrightarrow{E}$ $X-Y$ + $C=C$ (Product)
Identify the enzyme class '$E$' from the following options: