Chemical reactions and Enzymes

Front

Enzymes are considered to be

Back

Protein

Front

What is the purpose of an enzyme?

Back

Speed up reactions

Front

Where do substrates bind on an enzyme?

Back

active site

Front

How do enzymes increase the speed of chemical reactions?

Back

reducing the activation energy

Front

What is a substance called if it speeds up a chemical reaction?

Back

catalyst

Front

What is the name for the mechanism of enzyme activity?

Back

Lock and key

Front

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

Back

Substrate

Front

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

Back

a product

Front

Can a change in pH alter the active site of an enzyme?

Back

Yes

Front

Which of these is NOT true? Enzymes can denature (change shape) when the temperature gets too high. Enzymes can only be used once in a chemical reaction. Extreme pH can denature enzymes. Enzymes speed up chemical reactions.

Back

Enzymes can only be used once in a chemical reaction.