- 1. Compared to an uncatalyzed reaction, an enzyme-catalyzed reaction
A) uses less substrates
B) occurs at a faster rate.
C) none of these
D) requires a higher temperature.
E) produces different products.
- 2. Substances that react under the influence of an enzyme are usually held to the enzyme by
A) ester bonds.
B) peptide bonds.
C) side chains of amino acids in the enzyme protein.
D) pH changes.
E) none of these
- 3. Identify each of the designated regions on the energy diagram for the conversion of a substrate to product with and without an enzyme: energy of the substrate
A) A
B) B
C) D
D) C
- 4. Identify each of the designated regions on the energy diagram for the conversion of a substrate to product with and without an enzyme:energy of the product
A) C
B) D
C) A
D) B
- 5. Identify each of the designated regions on the energy diagram for the conversion of a substrate to product with and without an enzyme: activation energy without the enzyme
A) A
B) B
C) D
D) C
- 6. Identify each of the designated regions on the energy diagram for the conversion of a substrate to product with and without an enzyme: activation energy with the enzyme
A) B
B) A
C) D
D) C
- 7. the temporary combination of an enzyme with the compound on which it acts
A) A
B) C
C) D
D) B
- 8. an organic compound that is sometimes needed to complete an enzyme
A) C
B) A
C) E
D) B
E) D
- 9. the portion of an enzyme molecule where catalytic activity occurs
A) D
B) C
C) B
D) A
- 10. an inorganic substance such as Mg2+ required by some enzymes for activity
A) C
B) A
C) D
D) B
- 11. one theory that accounts for the unusual specificity of an enzyme
A) D
B) A
C) B
D) C
- 12. decreasing the concentration of maltose
A) B
B) A
C) D
D) C
- 13. adjusting the temperature to the optimum temperature
A) D
B) A
C) C
D) B
- 14. raising the pH to 11.0
A) C
B) B
C) D
D) A
- 15. increasing the concentration of maltase (enzyme) when the enzyme is saturated with substrate
A) C
B) B
C) D
D) A
- 16. lowering the pH to 1.0
A) D
B) B
C) A
D) C
- 17. A biological catalyst is called a(n) __________.
A) enzyme
B) substrate
C) cofactor
D) lipid
- 18. The names of many enzymes can be recognized by the suffix __________.
A) -ate
B) -ine
C) -ase
D) -ite
- 19. An enzyme that converts a cis double bond to a trans double bond is classified as a(n) __________.
A) hydrolase
B) transferase
C) isomerase
D) lyase
- 20. The formation of an enzyme-substrate complex is the __________ step in enzyme action.
A) second
B) third
C) fourth
D) first
- 21. Research online and answer the following: i. What is enzyme replacement therapy? ii. List 3 types of ERTs, and what they are used to treat. iv. For one of these, give some detail on the specific enzyme being replaced, where the enzyme is obtained and how it is administered to the patient. Feel free to provide and other information that you think is pertinent.
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