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Who can help me with this chemistry problem, (best answer and explanation, ten...

Who can help me with this chemistry problem, (best answer and explanation, ten... - Chemistry Forum

Who can help me with this chemistry problem, (best answer and explanation, ten... - Chemistry Forum. Discuss chemical reactions, chemistry.


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Old 11-02-2008, 07:20 PM
Pipette Filler
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Default Who can help me with this chemistry problem, (best answer and explanation, ten...



...points)?
Walking consumes approximately 100kcal/min. For ATP hydrolysis (ATP--ADP +P) the reaction that drives muscle contraction ?G is -7.3kcal/mole (-30.5kj/mole). Calculate how many grams of ATP must be produced to walk a mile. ATP synthesis is coupled to the oxidation of glucose (?G = -686kcal/mole). How many grams of glucose are actually metabolized to produce this amount of ATP? (assume that only glucose oxidation is used to generate ATP and that 40% of energy generated from this process is used to phosphorylate ADP. THE GRAM MOLECULAR WEIGHT OF GLUCOSE IS 180g, while that of ATP is 507.)

Ok I know I am stupid but the only thing I have been able to do(and I am not sure if it is ok) is:

if GLUCOSE (180g)-> 100%

and ATP (507g) ->100%
then
Xg->40%
So X= (507g*40)/100 =202.8g of ATP
after this I do not know what to do
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