Name: ______________________________ Title: Quiz One Course: Sports Nutrition and Wt C Prof: David L. Gee, PhD Date: April 22, 2004 1. Successive days of hard training has little effect on pre- exercise muscle glycogen levels if the athlete consumes a diet containing a minimum of 40% of calories as CHO. 2. Which of the following energy sources produces ATP at the GREATEST rate? a. muscle glycogen b. liver glycogen c. creatine phosphate d. blood glucose e. adipose triglycerides 3. During high intensity exercise like weight lifting, protein oxidation for energy production contributes about 40% of energy needs. 4. During high-intensity, fatiguing exercise in which anaerobic reactions predominate, ___________ is used as the primary source of energy. a. ketone bodies b. muscle glycogen c. blood glucose d. fatty acids e. amino acids 5. Oral supplementation of creatinine has been shown to effectively increase muscle cellular levels of creatine phosphate. 6. During high intensity exercise, _______ serves as the primary terminal electron acceptor during the anaerobic oxidation of glucose. a. oxygen b. pyruvate c. creatine phosphate d. carbon dioxide e. amino acids 7. Which of the following sport events would rely on the lactic acid system for most of the energy production? a. competitive weight lifting b. 100 meter dash c. the 800 meter run d. the 5 km run 8. Which of the following is NOT a major contributing factor for amenorrhea in female athletes? a. decreased estrogen production b. increased body fatness c. high physiological and psychological stress d. low caloric intake 9. The ATP-PC system predominates during the longer sprints and middle distance runs. - 2- Name: ______________________________ Title: Quiz One 10. The high energy compound directly utilized by muscles to drive muscle contraction is: a. creatine phosphate b. creatinine c. adenosine triphosphate d. glucose e. acetoacetate 11. The metabolic pathway known as ______ is involved in the lactic acid system. a. Kreb's Cycle b. Electron Transport System c. Glycolysis d. beta-oxidation of fatty acids 12. Typical intake of dietary creatine is about: a. 1 gram per day b. 10 grams per day c. 100 grams per day d. 1 milligram per day e. 10 milligrams per day 13. Caffeine is thought to be an ergogenic aid for endurance athlete because of the effect it has on increasing the activity of: a. creatine kinase b. neutral amino acid transport proteins c. anaerobic glycolysis d. electron transport system e. adipose hormone sensitive lipase 14. Ketone bodies (acetoacetate and beta-hydroxybutyrate) are utilized by muscle as a significant source of energy during endurance exercise. 15. Increasing exercise intensity results in a decrease in the rate of glycogen utilization. 16. During low intensity exercise, ________ serves as the primary terminal electron acceptor during the aerobic oxidation of fatty acids. a. oxygen b. pyruvate c. creatine phosphate d. carbon dioxide e. amino acids 17. Oral supplementation with creatine kinase has been shown to be effective in increasing exercise performance in high intensity, repetitive exercises. - 3- Name: ______________________________ Title: Quiz One 18. Which of the following is NOT part of the recommended nutritional treatment guidelines for female athletes with the Female Athlete Triad? a. Increase weight gradually b. Increase calcium intake c. increase caloric intake gradually d. Increase training by 10-20% e. Provide patient education on healthy eating 19. The oxygen system possess a lower rate of ATP production but its capacity for total ATP production is much greater than anaerobic energy systems. 20. Lactic acid produced during exercise results from the oxidation of: a. lactose b. glucose c. fatty acids d. ketone bodies e. amino acids 21. Which of the following is NOT a likely cause of fatigue during exercise. a. depletion of muscle glycogen b. decreased hydrogen ion concentration in muscle cells c. increased serotonin levels d. decrease in blood sugar levels e. all of the above have been shown to cause fatigue during exercise. 22. During the 100 meter dash, more than 70% of energy is derived from aerobic metabolism. 23. The total amount of energy derived DIRECTLY from total body ATP is estimated to be: a. 1 Calorie b. 10 Calories c. 100 Calories d. 1000 Calories 24. Ketone bodies are derived from the partial oxidation of: a. fatty acids in the liver b. amino acids in the muscle c. anaerobic metabolism of acetoacetate d. recyling of glucose in the liver e. glycogen degradation in the muscle 25. The enzyme which catalyzes the hydrolysis of triglycerides in fat cells producing fatty acids is called: a. amylase b. creatine kinase c. carnitine transferase d. hormone sensitive lipase e. insulin - 4- Name: ______________________________ Title: Quiz One 26. The "female athlete triad" has been used to describe a. oxidant tissue injury b. iron deficiency anemia c. carnitine toxicity d. chromium induced glucose intolerance e. exercise related osteoporosis 27. Initial muscle glycogen levels in athletes participating in daily intensive physical training (about one hour per day of continuous exercise) while consuming a diet containing 30% carbohydrates by calories will__________. a. increase slightly every day. b. decrease gradually as the week progresses c. will remain essentially unchanged. 28. An increase in the blood concentration of the following may be an indicator of muscle damage. a. lactic acid b. triglycerides c. free fatty acids d. creatine kinase e. glucose 29. For events lasting up to 5-10 seconds, the most important source of energy for muscle contraction is: a. blood glucose b. fructose c. fatty acids d. creatine phosphate e. amino acids 30. As the intensity of exercise increases, the percentage of energy derived from fat decreases. 31. Depletion of muscle glycogen concentration is associated with higher ratings of perceived exertion. 32. Which of the following is not a component of the Female Athlete Triad? a. osteoporosis b. disordered eating c. coronary heart disease d. amenorrhea 33. Which of the following has not been associated with causing fatigue due to high intensity exercise. a. depletion of muscle protein stores b. alteration in calcium binding in muscle cells c. decreased binding of actin and myosin d. decreased activity of the rate-limiting enzyme of glycolysis - 5- Name: ______________________________ Title: Quiz One 34. Which of the energy sources produces ATP at the SLOWEST rate? a. muscle glycogen b. liver glycogen c. creatine phosphate d. blood glucose e. adipose triglycerides 35. Hypoglycemia during exercise is avoided by the utilization of: a. ATP b. muscle triglycerides c. liver glycogen d. adipose triglycerides e. creatine phosphate 36. The excretory waste product produced from the metabolism of creatine is: a. carnitine b. creatinine c. caffeine d. creatine kinase e. creatine monohydrate 37. Aerobic carbohydrate metabolism includes all of the pathways or metabolic steps except for: a. hormone sensitive lipase step b. TCA or Krebs' cycle c. glycolysis d. electron transport system