Molecules that enzymes break apart or put together (reactants).

The specific area of an enzyme that bonds with the substrate for a moment and fits the shape of the substrate exactly.

Temporary bonding between the enzyme and the substrate.

The new substances formed from the substrate.

The shape of the active site ensuring that enzymes usually work with only one kind of substrate.

The amount of energy needed to start a chemical reaction.

This is significantly lowered by enzymes, speeding up chemical reactions so life can exist.

To bend a protein so it no longer functions.

The measure of acidity in a substance.

A pH that is too high or low denatures an enzyme

so the active site cannot bind efficiently with the substrate.

Enzymes are designed to work at specific acid or base levels.

Too much heat or too much cold denatures the enzyme so the active site cannot bind efficiently with the substrate.

Enzymes are designed to work at specific temperatures.

More enzymes speed up chemical reactions.

More substrate speeds up chemical reactions to a point.

Enzyme names often begin with the substrate and end in the letters “ase.”