Why are enzymes so important to reactions in human biology?

Enzymes are very important in speeding up the reactions that occur within our bodies. Without them the reactions would occur too slowly to keep us alive.

Explanation:

when a reversible reaction is occurring in both directions at the same rate; the products and reactants do not change in concentration. a chemical reaction where the compound is broken into its constituent parts.

instead of copying and pasting things off of tests or work done on computer which im sure you did, try and read over the question carefully