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

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Solution

Arrangement of ATP synthase enzyme

ATP synthase enzymes have two units, $F_{0}$ and $F_{1}$ .
$F_{0}$ subunit is present within the thylakoid membrane and $F_{1}$ subunit is present facing the stroma of the chloroplast.

Conformational change

When protons pass through the $F_{0}$ subunit of the ATP synthase, it causes conformational change in the $F_{1}$ subunit which rotates and releases ATP molecules in the stroma of the chloroplast.

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Standard XII Biology

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