Sometimes you need an enzyme to work faster and your body creates an activator. Other times you might
eat something that acts as an activator. Activators make enzymes work harder and faster. If you're running in a race and you
need more energy. Get those enzymes to work!
In the same way that temperature can change the shape of proteins, the acidity of the environment does
the same thing. Remember that the pH is a measure of acidity?
These are the opposite of activators. Inhibitors either slow down or stop the activity of an enzyme. They
often bond to the protein and the shape changes. Remember - When the shape changes, the enzyme will not work the same way.
A nasty example of an inhibitor is snake venom or maybe nerve gas from World War I.