What is the primary function of enzymes in living systems?

$CH_2OOCR' \newline | \newline CHOOCR'' \newline | \newline CH_2OOCR'''$ $\xrightarrow[\text{Hydrolysis}]{\text{Enzyme}} CH_2OH \newline | \newline CHOH \newline | \newline CH_2OH + R'COOH + R''COOH + R'''COOH$
The enzyme used in the above reaction is:

Which of the following is known as the $fight-or-flight$ hormone?

Write a note on enzymes and their mechanism of action.

During the action of enzyme "Zymase",glucose is converted into . . . . . . ,with the liberation of carbon dioxide gas.

Enzymes are