Question

Three identical β subunits of the F1 complex during ATP synthesis have ____________

(a) Different affinities for ATP and ADP

(b) Similar affinities for ADP and ATP

(c) Different affinities for ADP but not ATP

(d) Different affinities for ATP but not ADP

The question was asked in examination.

I'd like to ask this question from ATP Synthesis in chapter Oxidative Phosphorylation and Photophosphorylation of Biochemistry

Answer 1

The correct option is (a) Different affinities for ATP and ADP

To explain I would say: The conformational differences among β subunits extend to differences in their ATP/ADP-binding sites.