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How do muscles continue to function during exercise as need for oxygen and glucose is increased?
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.
What else can I help you with?
Explain what effects the changes in insulin concentration have on glucose mobilization during exercise?
During exercise, changes in insulin concentration can affect glucose mobilization by stimulating glucose uptake in muscles. When insulin levels decrease during fasting or intense exercise, there is reduced inhibition of glycogen breakdown and increased release of glucose from the liver to maintain blood glucose levels. Conversely, high insulin levels during rest or fed state promote glucose uptake by tissues, decreasing reliance on liver glucose release.
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.
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.
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
What are the function of glucagon?
It increase the glucose level.It is produced by function.
Ways in which glucose is used?
glucose is used for energy so the body can 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.
What is the function of blood glucose?
Glucose provided energy to the cells. It's cell fuel!
How can Plasma glucose levels during exercise increase?
The blood glucose is used by the muscles during exercise. The level of the glucose in the blood drops down. This stimulates the secretion of the hormone called as glucagon. This glucagon is secreted by the alpha cells of the endocrine part of the pancreas.
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.
What does the brain need to function the most effectively?
The Brain needs 4 things to function: * Glucose * Blood * Oxygen * And Calcium The Brain needs 4 things to function: * Glucose * Blood * Oxygen * And Calcium
