Posted by admin on Thursday, November 11, 2010 · Leave a Comment
heya every one im home schooled and i am stuck on my science wondering if some one could help me with this question because i cant find the answer any where which is upsetting me if some one could help would be much appriciated thank you
First off, insulin is a hormone that force cells to "let-in" glucose; in other words, it makes cells absorb the glucose from the blood.
Glucagon is a hormone that force the liver to produce glucose and release them into the blood.
For marathon runners, they need LOTS of energy, which means LOTS of glucose, which is why they eat these starchy carbohydrate. After they eat them, lots of glucose end up in the blood. That's where insulin comes in. It lets cells absorb these glucose and "burn" them for energy.
When these glucose in the blood are being used up by the cells, new glucose is needed...where are we gonna get them? The hormone, Glucagon, "tells" liver to release glucose from its glucose storage into the blood. This gives cells the glucose they want for energy.
Hope these are helpful to ya. =)
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