Answer:
used to complete the glicolisis process
Explanation:
A glucose molecule will generate the necessary energy to the body to compete their own metabolic processes. 
At the begging of the process, the glucose change into 2 molecules of gliceraldehyde 3 - phosphate. In this first process the glucose molecule consume 2 molecules of ATP (the energetic molecule). 
After this first process, the aldehyde turns into piruvate, during this process, there is produced 2 molecules of ATP, so it is producing chemical energy. 
If during this process the cell need to enter into another metabolic process (pentose ways) then the gain of ATP deplets. 
 
        
             
        
        
        
<span>Glucose and oxygen react together in cells to produce carbon dioxide and water and releases energy.</span>
        
             
        
        
        
Answer: the answer is  D im pretty sure 
Explanation:
 
        
             
        
        
        
Http://www.chem4kids.com/files/elem_pertable.html this should help.