In an enzyme - catalyzed reaction, the enzyme binds to the substrate to form an _____________.

Enzymes are composed of what organic molecule?

Enzymes provide a site where reactants called substrates can be brought together in an enzyme-catalyzed reaction. The site is called the _______.

Where do substrates bind to an enzyme?

What is the energy needed to start a chemical reaction referred to?

What is the purpose of an enzyme?

Enzymes are biological ________.

Enzymes will make a reaction go _______ and use ______ energy.

Any substance that is acted upon by an enzyme is called a(n)?

After the enzyme and substrate bind together and perform the reaction, what does the substrate become?

Enzymes catalyze reactions by ___________ Activation Energy.