RE: The Respiratory Quotient - Human Energy Metabolism #2
Great, that you like the post. :) Ha! You may have used some derivative of this. xD
Mhmmm.. I am not sure, what 'difference' you want to have discussed here. But here a some: The first major difference is, that the glucose stored in the muscle is already there were it is meant to be used, so it does not take a delivery, which may be a further limiting factor. This is especially important for very spontaneous workload! Second, the sugar stored in the muscle is stored as glycogen, so as an branched carbohydrate with a whole lot of 'reductive ends', which are necessary for its fast availability, since the degradation of the glycogen starts and proceeds on these ends. Have a look at the following image, where glycogen is shown:
Structure of Glycogen - Image Source
This is the way how glycogen is built up. A protein core acts as a kind of a "growing seed" and then the glucose molecules are condensed together having a lot of branches, to provide for a great numbers of ends. The blood glucose does not have such a complex structure. - At least to my knowledge.
I hope your question is answered. Otherwise I look forward to a more specified one. ;)
Best,
mountain.phil28