Cellular respiration is an important cellular process during which cells use sugar to create ATP, a form of energy that can be used by your cells. Cellular respiration occurs across the membranes of the mitochondria. During one step of cellular respiration, hydrogen ions flow from high concentration to low Concentration across the inner mitochondrial membrane. Ihis movement of ions causes a small electrochemical voltage This provides energy to create ATP. What type of cellular transport occur during cellular respiration?