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Physiology Practice Test: Cell Metabolism
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Related: Physiology Practice Test: The Cell - Structure and Function

Physiology Practice Test: Cell Metabolism
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25 Questions

1. What is the first component of the electron transport chain that accepts electrons from an NADH molecule?
2. The amine group removed from an amino acid must be converted to ________ before being eliminated from the human body.
3. Hydrogen ions activate the enzyme ATP synthase by moving from ________.
4. A reaction is at equilibrium when the rate of the forward and reverse reactions are equal.
5. Chemiosmotic coupling refers to ________.
6. During end-product inhibition, ________.
7. In a reduction reaction, which of the following is most likely added to the reactants?
8. According to the induced fit model for enzymes, the binding of substrate to the active site alters the structure of the enzyme.
9. How many ATP are generated per acetyl coenzyme A going through the Krebs cycle followed by the electron transport system?
10. Energy-requiring reactions will always proceed spontaneously in the forward direction.
11. What is glycogenolysis?
12. Gluconeogenesis refers to synthesis of ________ and occurs in ________.
13. The rate at which an enzyme-catalyzed reaction occurs can be increased by ________.
14. As the energy required to overcome the activation energy barrier increases, the reaction rate will ________.
15. Which of the following is true of an endergonic reaction?
16. When an enzyme-catalyzed reaction is at equilibrium, ________.
17. Insulin levels in the blood are elevated in response to which of the following?
18. Enzymes act as ________ to increase reaction rate.
19. Any nutrient that is not synthesized by the body and must, therefore, be acquired through the diet is a(n) ________ nutrient.
20. The conversion of triglycerides to glycerol and fatty acids is called ________.
21. What are coenzymes?
22. The following reaction is an example of an oxidation: FAD + 2 H+ → FADH2
23. What is the most important energy-transferring compound in cells?
24. Which of the following is NOT a mechanism for regulating the flow of molecules through metabolic pathways?
25. Where does glycolysis occur?

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