What is the specific role of F 0 -F 1 particles in respiration?

The energy released during the electron transport system is utilized in synthesizing ATP with the help of ATP synthase (complex V). This complex consists of two major components. They are F 1 and F 0 . The F 1 headpiece is a peripheral membrane protein complex. It contains the site for the synthesis of ATP from ADP and inorganic phosphate. F 0 is an integral membrane protein complex that forms the channel through which proton crosses the inner membrane. The passage of protons through the channel is coupled to the catalytic site of the F 1 component to produce ATP. For each ATP produced, 3H+ passes through F 0 from the inter-membrane space to the matrix down the electrochemical proton gradient.

What is the specific role of F 0 -F 1 particles in respiration?

The energy released during the electron transport system is utilized in synthesizing ATP with the help of ATP synthase (complex V). This complex consists of two major components. They are F 1 and F 0 . The F 1 headpiece is a peripheral membrane protein complex. It contains the site for the synthesis of ATP from ADP and inorganic phosphate. F 0 is an integral membrane protein complex that forms the channel through which proton crosses the inner membrane. The passage of protons through the channel is coupled to the catalytic site of the F 1 component to produce ATP. For each ATP produced, 3H+ passes through F 0 from the inter-membrane space to the matrix down the electrochemical proton gradient.

What is the reason for describing ATP synthesis in F 0 , F 1 , particles of mitochondria as oxidative phosphorylation?

The synthesis action of ATP molecules depends on the nature of the electron donor. Oxidation of pyruvic acid in mitochondria gives rise to 3 molecules of ATP. One molecule of FADH 2 produces 2 molecules of ATP. The presence of oxygen is vital since it drives the whole process by removing hydrogen. In respiration, the energy of oxidation-reduction is utilized to produce the proton gradient required for phosphorylation. Thus, for this reason, the process of synthesis of ATP in mitochondria is called oxidative phosphorylation.