Name:_____________________ Nutrition 100 EXAM 3 1. Water constitutes ______ percent of body muscle. D. 75 2. The amount of water in each compartment mainly is controlled by D. ion concentration. 3. Intracellular water volume depends primarily on the concentration of B. phosphate and potassium. 4. The two most significant extracellular ions are A. sodium and chloride. 5. Water regulates body temperature through heat loss (sweat) via D. evaporation. 6. Which of the following is not true about the regulation of fluid in the body? A. Thirst is a reliable indicator of how much water should be consumed to replenish body fluids 7. Which of the following statements does not describe the role of minerals in the body? C. They provide 4 kcalories per gram 8. The typical American diet contains approximately ___ mgs of sodium per day: C. 2,300 to 4,700 9. All foods in their unprocessed form tend to be low in sodium except A. milk and dairy products. 10. Potassium performs all the following functions except A. it maintains the ability to see at night. 11. Lowering blood pressure is associated with a reduced intake of which of the following minerals? B. Potassium 12. A major function of chloride in the body is: C. component of hydrochloric acid 13. In the body, 99 percent of calcium is found in C. bones and teeth. 14. Which of the following is not a function of calcium? B. Oxygen carrier 15. The most nutrient-dense calcium food source is C. milk and dairy products. 16. Oxalic acid, commonly found in fiber rich foods, can inhibit the absorption of *** A. zinc B. iron. C. A & B D. None of the above 17. Phosphorus functions in all the following ways except B. it is critical for blood pressure regulation. 18. Which of the following groups of food would provide the most phosphorus? C. Cheeseburger on whole-wheat bun, cola 19. What is magnesium's primary function? D. It is important for nerve and heart function 20. We get most of the sulfur in our diet from (this is the same area sulfur primarily functions in the body) D. proteins. 21. Magnesium is provided in the diet primarily by A. whole grains. 22. Milk is a poor source of C. iron and vitamin C. 23. Which of the following statements is true about iron? A. Iron deficiency anemia is found among young children, adolescents, and menstruating women 24. The best-absorbed iron source is found in which of the following foods? A. Sirloin steak 25. A mineral that has primarily antioxidant functions and has been suggested to reduce cancer risk is C. selenium. 26. A goiter may form as a consequence of an inadequate intake of D. iodide. 27. Milk is a poor source of C. iron and vitamin C. 28. The mineral that gives hardness to teeth and bones, reducing dental caries is D. fluoride. 29. Copper's functions consist of all the following except B. thyroid hormone synthesis. 30. A suboptimal intake of chromium in individuals in the U.S. may be linked to A. impaired glucose absorption. 31. As far as diet is concerned, a person wanting to reduce the risk of developing hypertension would want to do all the following except C. eat lots of prepackaged and canned foods. 32. In women, bone loss begins around age C. 30. 33. The very dense, stone-like component of bones is the: D. Cortical 34. The most effective treatment for preventing bone loss in those at risk for osteoporosis is D. increasing calcium and vitamin D. 35. Which of the following is true about basal metabolism? C. It represents about 60 percent to 70 percent of total kcalories used by a sedentary person during a day. 36. Carol eats 800 kcalories a day to lose weight. She is 40 years old. Carol has been walking briskly 60 minutes daily for the past 2 months. In her younger days she lifted weights, but she has lost considerable lean body mass over the years because of inactivity. Recently, Carol was diagnosed with hypothyroidism, which lowers metabolism. Which of the following factors increases Carol's energy output and promotes weight loss? D. Her walking routine 37. The thermic effect of food A. represents the Kcalories needed to digest, absorb and process ingested food. 38. Body weight in kilograms divided by height squared in meters yields B. body mass index. 39. How would you interpret the body mass index for a woman who is 1.63 meters tall and weighs 72 Kilograms? D. She slightly exceeds the value for which health risks begin 40. What is the name of the high energy compound that cells use directly to fuel other chemical reactions? A. Adenosine triphosphate 41. The difference between aerobic and anaerobic glucose breakdown is C. the end products of aerobic glucose breakdown are carbon dioxide and water; the end product of anaerobic glucose breakdown is lactic acid. 42. Anaerobic glucose breakdown provides most of the energy for sports activities lasting C. 30 seconds to 2 minutes. 43. If a woman athlete is not menstruating regularly, she should do all the following except B. increase her kcalorie intake. 44. What is the name of the condition characterized by disordered eating, lack of menstrual periods, and osteoporosis? C. Female athlete triad 45. If a tuna casserole serving has 565 calories, 84 grams of carbohydrate and 13 grams of protein, how many fat calories does it have? 177 46. How many grams of alcohol are in a margarita with 500 calories, 75% of which are carbohydrate calories (assume no fat or protein)? D. 18 47. Studying the pima Indians has suggested several theories in nutrition and nature vs nurture in leading to obesity. What is described as the genetic propensity to having a low basal metabolic rate as defined by studying the pima Indians? Thrifty gene theory 48. In class, we briefly discussed anabolic steroid use. One danger of anabolic steroid use we discussed, particularly a hormone use such as testosterone is: Decreased ability of the body to manufacture its own hormone 49. As a supplement to increase strength, creatinine is Effective 50. True or false: Very active athletes who consume additional calories to meet their energy needs often require vitamin and protein supplements as well. False
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