Chapter 10

11 September 2022
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question
What is the name of the high energy compound that cells use directly to fuel other chemical reactions?
answer
adenosine triphosphate
question
ATP and phosphocreatine are major energy sources for events lasting how long?
answer
1 minute
question
The conversion of glucose to lactic acid is called?
answer
anaerobic glucose breakdown
question
The difference between aerobic and anaerobic glycolysis is?
answer
the end products of aerobic glucose breakdown are carbon dioxide and water; the end products of anaerobic glucose breakdown is lactic acid
question
For aerobic glucose breakdown to take place, 2 and 3 carbon fragments must enter which cell organelle to be metabolized into carbon dioxide and water?
answer
mitochondrion
question
Anaerobic glucose breakdown provides most of the energy for sports activities lasting?
answer
30 seconds to 2 minutes
question
Aerobic glucose breakdown provides most of the energy for sports activities lasting?
answer
2 minutes to 4 hours
question
Protein supplies approximately ___ percent of a human's energy needs.
answer
2-5
question
What is true about protein as an energy source?
answer
the need for protein as an energy source is greater for endurance athletes than those who body build or lift weights
question
Zelda is a marathon runner. She completes the marathon in 2 hours and 30 minutes. Which of the following is true regarding her fuel use during the marathon?
answer
as exercise duration increases beyond 20 to 30 minutes, blood glucose will become increasingly important to spare muscle glycogen, so Zelda will have the ability to sprint across the finish line
question
Bob drinks 6 cups of caffeinated coffee before his long distance bike racing. He does this so fatty acids will be released into the bloodstream in greater than normal quantities to be used for energy and spare glycogen. Which of the following is true about fatty acid usage for energy?
answer
this is not proven or a promoted strategy to enhance performance
question
Neil is a football player. We can tell whether he is getting enough calories by all of the following except?
answer
weighing him before and after football practice
question
If an athlete's body fat level is too high, what is the best weight loss approach?
answer
eat about 200 to 500 calories less per day
question
Bart is a wrestler. His weight is regularly higher than the weight class he would like to wrestle in. What should he do?
answer
gradually reduce food intake before wrestling season
question
Athletes who consume adequate carbohydrates promote all of the following except?
answer
increases in body fat levels
question
To help maintain adequate glycogen stores, an endurance athlete should eat?
answer
bagels and oranges
question
A meal representative of what an endurance athlete should eat is?
answer
baked chicken, plain baked potato, and fruit juice
question
Carbohydrate loading...?
answer
involves a tapering in the intensity of workouts with a corresponding increase in the percentage of carbohydrates intake
question
For which of the following activities would carbohydrate loading be warranted?
answer
marathon