The protein part of an enzyme is known as:

Which energy is required for the initiation of a biochemical reaction?

Which enzyme was the first to be discovered?

Regarding the catalytic cycle of an enzyme action,select the correct sequential steps:
$A$. Substrate-enzyme complex formation.
$B$. Free enzyme ready to bind with another substrate.
$C$. Release of products.
$D$. Chemical bonds of the substrate broken.
$E$. Substrate binding to active site.
Choose the correct answer from the options given below:

Chemically,enzymes are ....

Hydrolytic enzymes that function at low $pH$ are called .........