MOVE CURSOR OVER ANSWERS: DO NOT CLICK MOUSE
1. What enzyme catalyzes the hydrolysis of creatine phosphate (CP)?
A. Hexokinase
B. Phosphorylase
C. Creatine kinase
D. Phosphofructokinase
2. Study of energy transfer in chemical reactions within living tissue.
A. Entrophy
B. Bioenergetics
C. Metabolism
D. Mitochondrial respiration
3. A chemical reaction that releases free energy.
A. Exergonic
B. Endergonic
C. Equilibrium
D. Enzymatic
4. During steady-state exercise, most pyruvate does what?
A. Is converted to lactate
B. Goes directly to the electron transport chain
C. Enters the mitochondria
D. Converts to NADH + H+
5. What is the formation of water and ATP in the electron transort system called?
A. Oxidative phosphorylation
B. Mitochondrial respiration
C. Tricarboxylic acid cycle
D. Glycerol-3-phosphate shuttle
6. What is a coenzyme?
A. A protein substance derived from a vitamin that activates an enzyme
B. A nonprotein substance derived from a vitamin that activates an enzyme
C. A carbohydraate substance derived from a vitamin that activates an enzyme
D. A fat substance derived from a vitamin that activates an enzyme
7. What is a rate-limiting enzyme?
A. AMP
B. A modulator such as phosphate
C. An enzyme that can be acted on (inhibited or stimulated) by other chemicals
D. None of the above
8. What substrate does the brain and nervous system primariy rely as fuel?
A. Free fatty acids (Fats)
B. Amino acids (Proteins)
C. Glucose (Carbohydrates)
D. Ketones (Metabolites of fatty acids)
9. Where does gluconeogenesis take place?
A. Kidneys
B. Pancreas
C. Small intenstines
D. Liver
10. Where does glycolysis take place?
A. Plasma bilipid layer of cell
B. Terminal cisternae of cell
C. Mitochondria of cell
D. Cytoplasm of cell
11. Where does the TCA cycle occur?
A. Cytoplasm of cell
B. Mitochondrial matrix
C. Inner membrane of mitochondria
D. Intermembrane of mitochondria
12. Before fatty acids can enter the TCA cycle, what process must they undergo first?
A.Transamination
B. Deamination
C. Beta oxidation
D. Gluconeogenesis
13. What is the main rate-limiting enzyme of glycolysis?
A. Hexokinase
B. Phosphorylase
C. Creatine kinase
D. Phosphofructokinase
14. Total of all energy transformations in the body.
A. Entrophy
B. Bioenergetics
C. Metabolism
D. Mitochondrial respiration
15. What is another name for oxidation-reduction reactions?
A. Redox
B. Oxidative phosphorylation
C. Substrate level phosphoylation
D. Allosteric enzyme reaction
16. What is another name for the Krebs cycle?
A. Electron transport system
B. Glycerol-3-phosphate shuttle
C. Tricarboxylic acid cycle
D. None of the above
17. This is referred to as an unusable form of energy.
A. Harnessed energy
B. Gibbs energy
C. Free energy
D. Entrophy
18. Involves bonding of smaller molecules to produce larger molecules.
A. Anabolism
B. Catabolism
C. Metabolism
D. Beta oxidation
19. An enzyme that can be activated or inhibited is termed what?
A. Reductive enzyme
B. Oxidative enzyme
C. Allosteric enzyme
D. None of the above
20. What is the most rapid means to regenerate ATP?
A. Gycolysis
B. Mitochondrial respiration
C. Phosphagen system
D. All of the above are equal
21. The breakdown of glycogen is referred to as:
A. Gycolysis
B. Glycogenolysis
C. Gluconeogenisis
D. Glycogen sythetase
22. Energy within chemical compounds is called:
A. Chemical energy
B. Heat energy
C. Physical energy
D. Light energy
23. Why are enzymes important?
A. The function as biological catalysts
B. The provide the means to couple chemical reactions
C. They increase the rates of reactions
D. All of the above
24. The adenylate kinase reaction combines_____ and _____ to form ATP?
A. ADP, Pi
B. ADP, AMP
C. ADP, ADP
D. AMP, 2Pi
25. The Cori Cycle involves:
A. The conversion of lactacte to glucose in the liver
B. The conversion of pyruvate to ACoA in the mitochondria
C. The conversion of alanine to glucose in the liver
D. The catabolism of FFA in the beta cycle