Enzymes initially developed in high-temperature environments and subsequently adapted to cooler conditions as the Earth underwent a cooling phase.

image: Enzymes evolved to efficiently operate in low-temperature environments via key substitutions of amino acids in their active site, which lowers the activation energy of catalytic reactions.

Enzymes are involved in virtually every biological process that occurs throughout the body. This includes but is not limited to the following essential roles: ...

In contrast, an inhibitor molecule (pink circle) can prevent the interaction of an enzyme with its substrate and render it inactive. This page has been archived and is no longer updated Activation ...