8. Why is it important to maintain blood glucose during exercise? How is this achieved?
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- 7.Define the Frank-Starling mechanism. How does this work during exercise?Oxidation of ingested CHO during exercise depends on each of the following variables except... Group of answer choices CHO flavor. ingested amount. exercise intensity. type of CHO.The concentrations of lactate in blood plasma before, during, and after a 400 m sprint are shown in the graph.(a) What causes the rapid rise in lactate concentration?(b) What causes the decline in lactate concentration after completion of the sprint? Why does the decline occur more slowly than the increase?(c) Why is the concentration of lactate not zero during the resting state?
- 50. It is possible to double glycogen levels in skeletal muscle after carbohydrate loading, which requires one to eat roughly _________ of total kilocalorie intake from CHO. 35% 70% 55% 15%I do not know which diagram is for this question but please see and answer this question. I need help Question: Which of the following statements regarding carbohydrate and fat metabolism during exercise is true? A: plasma glucose contributes more to energy provision than does muscle glycogen at 85% Vo2 max B: the utilization of fat as an energy source is greatest at the highest exercise intensities e.g. greater than 85% VO2 max C: carbohydrate supplementation during moderately intense exercise (eg. 70-80% VO2 max) can help one to exercise longer until the onset of fatigue D: the greatest amount of glycogen is used at around 65% VO2 max7B. Explain how muscles obtain energy for contraction (esp. in absence of O2). Be sure to discuss the 4 major methods muscles use to obtain energy during short, intense exercise.
- Since ancient times it has been observed that certain game birds, such as grouse, quail, and pheasants, are easily fatigued. The Greek historian Xenophon wrote: “The bustards . . . can be caught if one is quick in starting them up, for they will fly only a short distance, like partridges, and soon tire; and their flesh is delicious.” The flight muscles of game birds rely almost entirely on the use of glucose 1-phosphate for energy, in the form of ATP . The glucose 1-phosphate is formed by the breakdown of stored muscle glycogen, catalyzed by the enzyme glycogen phosphorylase. The rate of ATP production is limited by the rate at which glycogen can be broken down. During a “panic flight,” the game bird’s rate ofglycogen breakdown is quite high, approximately 120 mmol/min of glucose 1-phosphate produced per gram of fresh tissue. Given that the flight muscles usually contain about 0.35% glycogen by weight, calculate how long a game bird can fly. (Assume the average molecular weight of a…9. Discuss the difference between metabolism during steady state exercise and intermittent exercise. Discuss the concept of EPOC and how it relates to both forms of exercise.Endurance athletes sometimes follow the exercise-and-diet plan described here: 7 days before an event, do exhaustive exercises so as to all but deplete glycogen stores. For the next 2 to 3 days, consume few carbohydrates and do moderate- to low- intensity exercises. Finally, 3 to 4 days before the event, consume a diet rich in carbohydrates. Explain the benefits of this regime.
- During exercise, the oxygen consumption (VO2) of the skeletal muscles may account for more than A. 65 percent of the total VO2 B. 75 percent of the total VO2 C. 85 percent of the total VO2 D. 95 percent of the total VO27. What metabolic adaptations occur in response to endurance training? Explain the two theories that have been proposed to account for limitations to aerobic performance that may be altered by endurance training. Which of these has the greatest validity today?Discuss several possible reasons why blood lactate begins to rise rapidly during incremental exercise.
