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Principles of Cell Metabolism Chapter Exam

Exam Instructions:

Choose your answers to the questions and click 'Next' to see the next set of questions. You can skip questions if you would like and come back to them later with the yellow "Go To First Skipped Question" button. When you have completed the practice exam, a green submit button will appear. Click it to see your results. Good luck!

Page 1

Question 1 1. Metabolism includes any chemical process by which a substance is what?

Question 2 2. A non-substrate molecule binds to an enzyme. Now the enzyme is unable to bind its substrate. What has likely occurred?

Question 3 3. What is an activated complex?

Question 4 4. Which of the following types of energy does the sun use to heat up our atmosphere?

Question 5 5. What is chemical equilibrium?

Page 2

Question 6 6. ATP has three sections. Which is not a section of the ATP molecule?

Question 7 7. Which of the following describes a biochemical reaction?

Question 8 8. Iron binds tightly to the heme group in the protein hemoglobin. What type(s) of helper molecule would this be considered?

Question 9 9. What is a coefficient?

Question 10 10. Metals are characterized as surface catalysts. Which of the following is another term for a surface catalyst?

Page 3

Question 11 11. Enzymes allosterically regulated often have two states known as which of the following combination of states?

Question 12 12. What is the definition of metabolism?

Question 13 13. What does an increase in temperature do to the reaction rate?

Question 14 14. Which of the following is FALSE about competitive inhibition?

Question 15 15. In the following chemical equation, what is the reducing agent?

Page 4

Question 16 16. Which of the following is NOT true of lactase?

Question 17 17. Chemical reactions are _____.

Question 18 18. What are intermediates?

Question 19 19. Which one of the following is responsible for metabolizing alcohol?

Question 20 20. An activator could have the following effect on an enzyme:

Page 5

Question 21 21. What molecule in our bodies is a catalyst?

Question 22 22. Which of the following is a common unit that is used to measure energy?

Question 23 23. What do the brackets indicate in an equilibrium equation?

Question 24 24. ATP can be found in:

Question 25 25. When glycogen molecules break down to release glucose units, which biochemical reaction took place?

Page 6

Question 26 26. A coenzyme is differentiated from the broader class of cofactors because it is _____.

Question 27 27.

Choose the correctly balanced equation for the following reaction:

Sodium + water → sodium hydroxide + hydrogen gas

Question 28 28. The lock and key fit model is a great example of what homogenous catalyst?

Question 29 29. Which of the following is TRUE about allosteric regulation?

Question 30 30. Metabolic pathways are the chemical reactions that take place within a cell to create or use which one of the following?

Principles of Cell Metabolism Chapter Exam Instructions

Choose your answers to the questions and click 'Next' to see the next set of questions. You can skip questions if you would like and come back to them later with the yellow "Go To First Skipped Question" button. When you have completed the practice exam, a green submit button will appear. Click it to see your results. Good luck!

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