Enzymes
1. Match the following words with their definitions.
___E____ Product
a. amount of energy required for a chemical reaction to
occur
___D____ Active site
b. substances that bring about a chemical reaction
without being changed itself
___F____Enzymes
c. substance that enzymes act upon
___B____Catalyst
d. regions on the surface of enzymes that fit the
substrate
___C____Substrate
e. substance formed from the substrate at the end of a
chemical reaction with an enzyme
___A____ Activation energy
f. protein that speed up chemical reactions
2. Characteristics of enzymes:
a. One characteristic of enzymes is that they are reusable. This is important because
Biological processes are more efficient because enzymes are reusable.
b. Name 3 other characteristics of enzymes:
i. Substrate specific
ii. Work best at a certain pH
iii. Work best at a certain temperature
3. Naming enzymes
a. Enzymes names end with -ase
4. Draw out the enzymatic process. Be sure to label each part.
SEE PowerPoint
5. Factors that affect enzyme activity.
a. Enzyme activity can be affected by:
i. Increasing substrate concentration
ii. Increasing temperature
iii. Increasing pH