## Energy Calculated

Discussion of all aspects of cellular structure, physiology and communication.

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### Energy Calculated

Heres the question:

Approximately what % of the energy of glucose is transferred to storage in ATP as a result of the complete oxidation of glucose to CO2 and water in cellular respiration?

I know oxidation means the loss of electrons. The offered answers are:
2%
4%
10%
25%
none of the amount

I am not looking for the answer, just interested in how this is calculated for further references. Where do I begin to understand this. THANKS
seders99
Garter

Posts: 15
Joined: Mon Mar 02, 2009 12:04 am

the hydrolysis of one mole of ATP yields 7.3 kcal. The hydrolysis of one mole of glucose yields 686 kcal. If you know enough about cell respiration you know how many moles of ATP are produced from each mole of glucose. Then you can just multiply that and see how much of the energy in the glucose is still there in ATP.

PS: for the future, it is a value that is useful to memorize
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MrMistery
Inland Taipan

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### Re: Energy Calculated

36 ADP+P molecules bonded from one glucose in cellular respiration(sometimes 38).
+ MrMistery's numbers and you got yourself an answer.
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futurezoologist
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