So we see that the beta subunit, however, unlike the alpha subunit, can actually buy the ADP and orthophosphate reactants, synthesize the ATP and release the ATP into the matrix. And at any given moment in time, the beta subunits can exist in one of three distinct states. We have the ten state in which the ATP and orthophosphate are brought closed so that they can be combined to form that ATP molecule. And once the ATP is formed, only once the subunit is in the open state can the ATP actually be released from that structure. Now, in the loose state, the bound ATP and Orthophosphate become trapped, but they're not close enough to actually react and form the ATP. So these are the three states.