How much of the heat produced can be accounted for from the production of strombine?

Posted on 2016-04-12 14:56:00 in Biology by CARMEN

A scientific expedition has brought back a facultative anaerobe from Lake Vostok. The lake is about 100 meters deep but has been covered by a kilometer of ice for the last 10,000 yrs and the anaerobe is an invertebrate weighing 1 g. We have determined that glycogen is its only anaerobic substrate and strombine is one of its anaerobic endproducts. A calorimeter measures its anoxic heat flux to be 0.2 mW.g-1 and we know it produces 3 μmoles of strombine.g-1. h-1. How much of the heat produced can be accounted for from the production of strombine? If there is any unaccounted for heat produced, explain why, name 2 other endproducts that should be tested for and what is the anoxic ATP turnover rate based on strombine? (10 marks) 

Note: the caloric equivalent for propionate is -60 kJ.mole-1, assume the heat of neutralization of any buffer system is included in this number. And a Watt = Joule.sec-1.

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