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In organisms, there are two substances used for storing vitality: glycogen and fats. When fully oxidized to carbon dioxide and water, fat produces extra power for cells, but consumes more oxygen and time. Therefore, it is a medium-powered system that solely meet the average-intensity exercises, resembling jogging. However, glycogen additionally has its advantages. It is a temporary storage materials that help life activities as shortly as doable. It's indispensable for top-intensity exercises that require rapid power launch, akin to a 400-meter dash. Glycolysis even generates ATP from it with out oxygen. Glucose is saved in cells as a polymer and never a monomer as a consequence of totally different osmotic strain of those two kinds. Insoluble granular glycogen reduces the osmolarity in cytoplasm. It contributes to a focus about 10__mMol/L. If all glucose unit is dissolved in cytoplasm, the concentration would be 400 mMol/L. An osmotic pressure of 40 million times would allow quite a lot of water to enter the cell resulting in rupture.
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