A Given Enzyme Works On

Question:

Answer: a. They are proteins.

AND

b. They can bind with substrate.

AND

c. They act as catalysts.

Question: The active site is located on the substrate.

TRUE OR FALSE?

The active site is part of enzyme structure.

Answer: False

Question:

Answer: c. The molecules of substrate were all bound to enzyme.

Question:

Answer: d. reduce the energy of activation and increase the rate of a reaction.

Question: Temperature, pH, and ionic concentrations play an important role in the proper functioning of enzymes.

TRUE OR FALSE?

Answer: True

Question: Enzymes are consumed in chemical reactions and must therefore be replenished.

TRUE OR FALSE?

Reason: Enzymes are defined as catalysts, which means that the enzyme not only increases reaction rates but also are not used up or changed during the process and can be used multiple times.

Answer: False

Question: Enzymes are

1. nucleic acids.

2. b. carbohydrates.

3. c. steroids.

4. d. proteins.

5. Answer: d. proteins.

6. Question: Which of the following binds to the active site of an enzyme?

7. a. substrate

8. b. None of the answer choices are correct.

9. c. any other enzyme

10. d. product

11. e. water

12. Reason: The substrate binds the active site of the enzyme forming a substrate-enzyme complex and degrades the substrate into products.

13. Answer: a. substrate

14. Question: A given enzyme works on

15. a. inhibitors.

16. b. one type of substrate.

17. c. one of two possible substrates.

18. d. no substrate.

19. e. any number of different substrates.

20. Reason: Enzymes have specific binding to one specific substrate. For example, the enzyme sucrase only binds to the substrate sucrose.

21. Answer: b. one type of substrate.

22. Question:

23. Answer: b. is where it works best.