Bio Exam Ch 10

Weight lifting stresses the muscles, causing them to adapt by increasing in size and strength. This process is called a) atrophy. b) hypertrophy. c) megalomia. d) tonia.

Which of the following is NOT considered a component of a person's fitness? a) Body composition b) Flexibility c) Maximum heart rate d) Strength

Which of the following is a result of regular exercise? a) Increased risk for developing type 2 diabetes b) Reduced blood pressure c) Reduced bone density d) Reduced HDL cholesterol levels

Based on the information depicted in this visual, which of the following statements is FALSE? (picture) a) One's total energy expenditure does not include the calories expended to digest the food. b) Participating in exercise on a regular basis will increase your BMR. c) Someone who engages in physical activity will expend more calories than someone who doesn't exercise. d) All of these statements are true.

Which of the following statements regarding physical activity is FALSE? a) Adults should include strength training activities 4-5 times a week. b) Approximately one-third of American adults get no physical activity at all during their leisure time. c) Greater health benefits can be obtained by exercising more vigorously or for a longer time. d) Most Americans do not exercise regularly.

Aerobic exercise is considered to be at an intensity of _____ % of maximum heart rate. a) 10-30% b) 40-70% c) 60-85% d) 90-100%

Resting between exercise sessions is important because it a) allows the body to replenish energy stores. b) repairs damaged tissues. c) strengthens muscles. d) All of the above statements are true.

The amount of ATP produced by anaerobic versus aerobic metabolism depends on the: a) amount of glycogen this is stored in the body. b) availability of oxygen. c) availability of amino acids. d) pH of the blood.

Based on this visual, which of the following statements about metabolism is FALSE? a) ATP is produced in the cells by anaerobic metabolism when no oxygen is available. b) Anaerobic metabolism utilizes all sources of fuel. c) Fatty acids can be converted to acetyl-CoA for ATP production. d) The majority of ATP is produced by aerobic metabolism.

Which of the following statements regarding ATP production is FALSE? a) Aerobic metabolism requires oxygen. b) Carbohydrates, fats, and protein can be used to product ATP. c) Most ATP is produced in the mitochondria. d) The majority of ATP is produced by anaerobic metabolism.

As compared to medium intensity exercise, such as hiking, fatty acids are used at a_____ rate and glucose at a _____ rate for fuel during rest. a) higher, lower b) higher, higher c) lower, lower d) lower, higher

The predominate fuel used by muscle during a 10K race (~50 minutes) is a) carbohydrate. b) creatine phosphate. c) fat. d) protein.

Based on the information depicted in this visual, which of the following statements is FALSE? (picture) a) During the first few seconds of exercise, the muscles get energy from stored ATP. b) After about 10 minutes, most of the ATP used to fuel exercise is produced by anaerobic metabolism. c) In about 2 minutes, anaerobic metabolism of glucose becomes the predominant source of ATP. d) Very early in exercise, creatine phosphate is broken down to produce ATP.

Based on the information in this visual, which of the following substances cannot be used to fuel exercise? (picture) a) Amino acids b) Glycogen c) Iron d) Triglycerides

Based on the information in this visual, where can your muscles get glucose to fuel activity? (picture) a) Dietary carbohydrates b) Liver glycogen c) Muscle glycogen d) All of these are sources of glucose.

Why is increasing the number of red blood cells an advantageous physiological change that occurs with aerobic training? a) It allows oxygen to be transported to tissues. b) It increases creatine phosphate concentration in muscles. c) It allows more glycogen to be stored. d) It prevents the breakdown of amino acids for fuel.

Which of the following is NOT a characteristic of the female athlete triad? a) Amenorrhea b) Disordered eating c) Improved bone density d) Low percentage of body fat

The major differences between the nutritional needs of a serious athlete and those of a causal exerciser are the amount of _____ required. a) amino acids and glycogen b) total energy and water c) total energy and amino acids d) water and iron

Adam has been push mowing his yard on a very hot and humid day for almost 90 minutes now. He is feeling faint and disoriented and is sweating profusely. When he checked his pulse, he noticed that it was weak but rapid. Based on this scenario, Adam is most likely experiencing which of the following? a) Heat cramps b) Heat exhaustion c) Heat stroke d) Sports anemia

A meal, such as the one depicted in this visual, should be consumed ____ before the competition. (picture) a) 30-45 minutes b) 60-90 minutes c) 2-4 hours d) 4 or more hours

Which of the following would be the best pre- exercise meal for a marathon runner? a) Sausage and egg biscuit b) 1 blueberry pop tart c) 1 cup corn flakes with skim milk and a banana d) 1?2 cup of hash browns and 2 pieces of bacon

Of the following athletes, who is least likely to benefit from creatine supplements? a) Body builder b) Football player c) Marathon runner d) 100 meter sprinter