ATPase enzyme consists of two parts. What are those parts ? How are they arranged in the thylakoid membrane ? Conformational change occur in which part of the enzyme ?

Explanation

ATP synthase enzyme has two parts
(a) `F_(1)`- head is a peripheral membrane protein complex and contain the site for synthesis of ATP from ADP+pi ( inorganic phosphate. )
(b) `F_(0)`-integral membrane protein complex that forms the channel through which proton cross the inner membrane.
The arrangment of `F_(1)` and `F_(0)` in thylakoid membrane is as follows
`F_(0)`-portion is present within the thylakoid membrane.
`F_(1)`-protion of ATP synthase enzyme is present in the stroma if chloroplast.
The conformational change occurs in `F_(1)` portion of ATP synthase thus, facilitaling the ATP synthesis.