I believe you are looking for the term "accelerant." A catalyst.
Enzyme
1) Something that speeds up a chemical reaction but that is not changed by the reactions is called a catalyst.2)An element is a pure substance (not a compound) and while some elements (such as platinum) can speed up chemical reactions (eg platinum in a car exhaust catalytic converter), by far the most common catalysts are in fact compounds not elements. These compounds are organic in nature and called enzymes.
The answer is catalyst. The question bugs me a little, because not all catalysts are elements. Some are compounds.
Yes, a protein catalyst that speeds up chemical reactions in organisms is called an enzyme. Enzymes are involved in almost all cellular processes and play crucial roles in regulating biological reactions.
Catalyst. And in cell it is enzyme
Stimulants - but more probably catalyst.
This substance is called catalyst; and in living systems it is an enzyme.
it is an enzyme that speeds up chemical reactions.
Enzyme
enzyme
Catalyst speeds up reactions, and inhibitors are used to slow down reactions.
cameral