During cellular respiration, food (glucose) molecules are broken down into energy in the form of a. atp b. h2o c. co2 d. o2

The correct answer is:  [A]:  " ATP " .
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      →  which stands for "adenosine triphosphate" . 
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Note:  Refer directly to the following image with text; for further explanation:

               { Source:  taken directly from Encyclopedia Brittanica ; 
                       Date accessed / view:  23 Apr 2018.  Web. }. 
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Ithink it’s c or b for the answer.