1 - Marietta College

During photorespiration, CO2 is a product of photosynthesis, instead of O2. Ammonia (NH3) will shuttle H+ across a membrane from the more acidic side to the more basic side. This happens because NH3 is protonated under acidic conditions (NH3 + H+ ( NH4+), then can freely diffuse across the membrane, and then is deprotonated under the more alkaline side (NH4+ ( NH3 + H+). ................
................