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How do muscles continue to function during exercise as need for oxygen and glucose is increased?
Wiki User
∙ 15y ago
Many of the changes in metabolism during exercise have effects throughout the body. In muscle, there is a increase in blood flow caused by both local factors as well increases in circulating adrenaline. These same hormones also increase the release of glucose into the blood by increasing the break down of glycogen stores. Glucose enters the muscle by because the concentration of glucose outside of the muscle cells is much greater than within (where glucose is being metabolized to make ATP). Oxygen is increased by increases in the rate of respiration and taking deeper breaths. Nonetheless strenuous exercise in muscle results in an energy and oxygen deficit that will lead to the exhaustion of the supply of ATP needed for continued muscle activity.
Wiki User
∙ 15y ago
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Another function of the Kreb's cycle other than to continue the breakdown of glucose is to?
Another function of the Kreb's cycle other than to continue the breakdown of glucose is to release energy. It gives the cell more energy to complete other processes.
What can glucose tests detect?
increased blood glucose (hyperglycemia), decreased blood glucose (hypoglycemia), increased glucose in the urine (glycosuria), and decreased glucose in CSF, serous, and synovial fluid glucose.
Why would the respiration of yeast graph not continue to go up in a straight line if the amount of glucose was increased indefinately?
Because glucose is not the only molecule required for respiration, oxygen is also needed, if the amount of glucose was increased indefinatly then the amount of oxygen would decrease rapidly until there is no longer enough. Anaerobic respiration will continue to occur even without oxygen, however, this produces ethanol (in yeast) as a biproduct, when the concentration of ethanol becomes too high, the yeast die.
What hormone is increased in the glucose in the bloodstream?
Glucagon
Can blood glucose level falsely increased in lipemic serum?
No. Lipemia is cholesterol and fat, not glucose.
What are the function of glucagon?
It increase the glucose level.It is produced by function.
What is the function of liver glycogen degradation?
The function of glycogen degradation is to export glucose to other tissues when blood glucose levels are low.
Ways in which glucose is used?
glucose is used for energy so the body can function
What is the function of alpha glucose?
Energy source, you release glucose during respiration
What is the function of blood glucose?
Glucose provided energy to the cells. It's cell fuel!
Why is there an initial rapid increase in respiration rate during exercise?
Your body requires more oxygen when it's performing exercise, and as a result, you will take more breaths per minute to satisfy the increased oxygen demands. Oxygen is needed to efficiently convert glucose to ATP (your body's cellular energy source), and exercise certainly requires added energy.
What is the primary function of muscle glycogen?
Muscle glycogen is an important fuel for contracting skeletal muscle during prolonged strenuous exercise, and glycogen depletion has been implicated in muscle fatigue. It is also apparent that glycogen availability can exert important effects on a range of metabolic and cellular processes. These processes include carbohydrate, fat and protein metabolism during exercise, post-exercise glycogen resynthesis, excitation--contraction coupling, insulin action and gene transcription. For example, low muscle glycogen is associated with reduced muscle glycogenolysis, increased glucose and NEFA uptake and protein degradation, accelerated glycogen resynthesis, impaired excitation--contraction coupling, enhanced insulin action and potentiation of the exercise-induced increases in transcription of metabolic genes. Future studies should identify the mechanisms underlying, and the functional importance of, the association between glycogen availability and these processes.
