Chapter 6 - Enzymes

Enzymes

Quiz

 

1. . What are enzymes?
   1.   Lipids
   2.   Carbohydrates
   3.   Proteins
   4.   Nucleic acids
2. . What is the primary function of enzymes?
   1.   Store genetic information
   2.   Provide structural support
   3.   Speed up chemical reactions
   4.   Transport molecules
3. What is the specific region of an enzyme where the substrate binds called?
   1.   Active site
   2.   Allosteric site
   3.   Active site
   4.   Binding site
4. . Which term describes the molecule upon which an enzyme acts?
   1.   Product
   2.   Catalyst
   3.   Substrate
   4.   Inhibitor
5. . What effect do enzymes have on activation energy?
   1.   Increase it
   2.   Decrease it
   3.   Eliminate it
   4.   Have no effect
6. Which of the following is NOT a factor that affects enzyme activity?
   1.   Temperature
   2.   pH
   3.   Light
   4.   Substrate concentration
7. . What is it called when an enzyme loses its shape and functionality due to high temperature or extreme pH?
   1.   Inhibition
   2.   Denaturation
   3.   Saturation
   4.   Activation
8. . Enzymes that work outside of cells are known as:
   1.   Endoenzymes
   2.   Exoenzymes
   3.   Coenzymes
   4.   Holoenzymes
9. . What type of enzyme inhibitor binds to the active site of an enzyme?
   1.   Non-competitive inhibitor
   2.   Competitive inhibitor
   3.   Allosteric inhibitor
   4.   Irreversible inhibitor
10. What is the effect of a non-competitive inhibitor on an enzyme?
    1.   It competes with the substrate
    2.   It binds to a site other than the active site
    3.   It enhances enzyme activity
    4.   It is identical to the substrate