Botany - Respiration in Plants Question with Solution | TestHub

The production of ATP with the help of energy liberated during oxidation of reduced coenzymes and terminal oxidation is called oxidative phosphorylation. Peter Mitchell (1961) put forward a hypothesis known as chemiosmotic hypothesis for ATP synthesis. According to this when electrons flow from dual proton, electron carrier to a non-hydrogen carrier the ${\mathrm{H}}^{+}$are released and expelled into the intermembrane space and thus, creates a proton gradient with higher concentration of ${\mathrm{H}}^{+}$in the inter membranous space than the matrix. Due to proton motive force the protons flow back and energy liberated during this back flow of protons activate ATPase present in $F_1$ head to synthesize ATP.