Explain chemiosmotic hypothesis

Explanation

The energy released during the electron transport system is utilised in synthesing ATP with the help of ATP synthase (complex V).

This complex consists of two major components `F_(0) and F_(1)` .
The `F_(1) ` headpiece is a peripheral membrane protein complex and contains the site for synthesis of ATP from ADP and inorganic phosphate .`(ADP + Pi to ATP)`
`F_(0)` is an integral membrane protein complex that forms the channel through which protons cross the inner membrane .
The passage of protons through and channel is coupled to the catalytic site of the `F_(1)` component for the production of ATP.
For each ATP produced `2H^(+)` passes through `F_(0)` from the intermembrane space to the matrix down the electrochemical proton gradient.
Therefore ATP is synthesised.