A muscle tissue in a highly active metabolic state (all Li jaI ia) will have -ATP/ADP and --NADH/NAD+ Select one: O a. high / high O b. low / high O c. medium/medium d. high / low
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- In contrast to resting cells, muscle tissue in an active metabolic state will have ___________ ATP/ADP and __________ NADH/NAD+. Justify.a. high; highb. high; lowc. low; highd. low; lowe. medium; mediumWhich of the following are the final by-products of glucose oxidation during aerobic cellular respiration? A. carbon dioxide and water only B. ATP, heat, carbon dioxide, and water C. heat only D. both ATP and heat only E. ATP onlyWhich of the following statements correctly describes why white muscle fibers do not need is mini mitochondria as red muscle fibers? a) want muscle fibers use anaerobic respiration which does not occur in the mitochondria b) what muscle fibers use anaerobic respiration which requires more efficient mitochondria than aerobic respiration c) white muscle fibers get more oxygen than the red muscle fibers
- An athlete participates in aerobic exercise three times a week. One of the changes is an increased ability to deliver oxygen to her skeletal muscles. Over time she notices that she can continue the exercise with greater intensity and duration. The reason for this change is that there is a(n) a. greater response from phosphate transfer. b. greater production of ATP from glycolysis and less from aerobic cellular respiration. c. greater production of ATP from aerobic cellular respiration. d. increased production of lactate.Compared to NADH, NAD is a ____ molecule. If the Na/K pump stopped working, there would be an immediate and temporary net____ in cellular ATP . Select one: a. Oxidized, decrease b. Oxidized, increase c. Reduced, decrease d. Reduced, increaseUnder what conditions will lactic acid accumulate in skeletal muscle? A. when citric acid enzymes are depleted B. when ATP is depleted C. when O2 is depleted D. when NADH is depleted
- In the presence of high ratio of NADH/NAD in a muscle cell glucose will continue towards which metabolic pathway: a. Formation of lactic acid b. Formation of acetyl CoA c. Storage of glycogen d. Production of 34 ATP + H20 and CO2 e. Krebs cycleJogging is considered aerobic exercise because the cardiovascular system (heart and blood vessels) can adjust to supply the oxygen needs of working cells. In contrast, sprinting the 100-meter dash might be called anaerobic (lacking oxygen) exercise, and golf nonaerobic exercise. Explain these last two observations.Why do you think a person is able to perform anaerobic exercise (such as lifting and holding a heavy weight) only briefly but can sustain aerobic exercise (such as walking or swimming) for long periods? (Hint: Muscles have limited energy stores.)
- During aerobic respiration, high energy electrons are taken from glucose and transferred to electron carriers. The cell then uses the energy from these electrons to: A) pump hydrogen ions across the inner mitochondrial membrane B) produce oxygen C) produce carbon dioxide D) make glucose E) reduce electron carriersA sprinter would experience muscle fatigue sooner thana marathon runner due to ________.a. anaerobic metabolism in the muscles of thesprinterb. anaerobic metabolism in the muscles of themarathon runnerc. aerobic metabolism in the muscles of the sprinterd. glycolysis in the muscles of the marathon runnerWhich mechanism of ATP production requires mitochondria and is able to use fatty acids and lactic acid energy sources? A glycolysis B aerobic respiration C anaerobic respiration