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Muscle cells need energy to contract. One biochemical pathway for energy transfer is the breakdown of glucose to pyruvate in a process called glycolysis. In the presence of sufficient oxygen in the cell, pyruvate is oxidized to CO2 and H2O to make further energy available. However, under extreme conditions, not enough oxygen can be supplied to the cells, so muscle cells produce lactate ion according to the reaction where Î”rGÂ°' = -25.1 kJ/mol. In living cells, the pH value is about 7. The hydronium ion concentration is constant and is included in Î”GÂ°, which is then called Î”rGÂ°'. Calculate Î”rGÂ° for the reaction at 25 Â°C.

          Muscle cells need energy to contract. One biochemical pathway for energy transfer is the breakdown of glucose to pyruvate in a process called glycolysis. In the presence of sufficient oxygen in the cell, pyruvate is oxidized to CO2 and H2O to make further energy available. However, under extreme conditions, not enough oxygen can be supplied to the cells, so muscle cells produce lactate ion according to the reaction where Î”rGÂ°' = -25.1 kJ/mol. In living cells, the pH value is about 7. The hydronium ion concentration is constant and is included in Î”GÂ°, which is then called Î”rGÂ°'. Calculate Î”rGÂ° for the reaction at 25 Â°C.

Added by Laura J.

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