Practice Quizzes

Chapter 14: Sports Nutrition: Eating for Peak Performance

1: In evaluating physical fitness, the following factors are measured EXCEPT
2: This anaerobic energy system rapidly produces energy (ATP) and lactate
creatine phosphate energy system
lactic acid energy system
ATP-CP energy system
oxygen energy system
3: This complex energy system requires oxygen, and completes the breakdown of carbohydrate and fatty acids through the citric acid cycle and ETC
creatine phosohate energy system
lactic acid energy system
ATP-CP energy system
oxygen energy system
4: Which energy system is used under anaerobic conditions by muscles?
lactic acid
both A and B
5: The lactic acid system involves
conversion of glucose to pyruvate.
conversion of phosphocreatine to glucose.
conversion of amino acids to acetyl CoA.
conversion of glycogen to amino acids.
6: What accounts for muscle fatigue?
lactic acid accumulation
liver glycogen replacement
acidification of muscle tissue
plasma calcium depletion
7: Current research suggests that athletes require only slightly higher protein intakes than sedentary people
8: As glycogen stores become depleted, muscles use _____ for energy.
blood glucose
all of the above
9: Following a carbohydrate loading regimen before an event increases
adipose tissue.
muscle glycemic index.
FT muscle cells.
muscle glycogen.
10: Carbohydrate loading would be most appropriate for which athlete?
cross-country skier
none of the above
11: Fat would be the main source of energy for which activity?
45-minute walk
20-minute run
3-minute run
60-second sprint
12: Which of the following statements is true?
Protein supplements are necessary for vegetarian athletes because they can't consume enough plant protein to meet their increased needs.
During exercise, protein and carbohydrates are the body's two main fuels.
Combining protein with carbohydrate after a workout increases glycogen synthesis more than consuming carbohydrate along.
all of the above
13: Which athlete is at greatest risk for iron deficiency?
20-year-old female runner
30-year-old male weight lifter
50-year-old male skier
60-year-old female swimmer
14: Fruit juices are not recommended as fluid replacers during physical activity because they contain
too much pulp.
too much carbohydrate.
insufficient potassium.
insufficient fatty acids.
15: The average healthy young man has _____ % body fat.
5 percent
10 percent
15 percent
25 percent
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