To answer the following question we must use the formula for aerobic respiration :
C6H12O6 + 6O2 -> 6CO2 + 6H2O
Looking at this equation, you can see molar ratio between C₆H₁₂O₆ and O₂ is one to six. Meaning that if six moles of oxygen are devoured, one mole of glucose will be eaten.
The answer is (4) at the cathode, where reduction occurs. The Na+ gains one electron and become Na(l). So the reaction occurs at cathode and is reduction reaction.
Cellular Respiration and Photosynthesis. Photosynthesis is the process of when plants use sunlight to make foods from carbon dioxide and water, to later on make oxygen. Cellular respiration is the process through which cells convert sugars into energy.