Scheme 3.
The diagram shows a reaction scheme where C subscript 1 to i is reversibly connected to O. From O, there is a reversible transition to I subscript L T I, with a forward rate constant k subscript L T I and a reverse rate constant k subscript minus l T I. Additionally, O is connected downward to I subscript F through another reversible step, with a forward rate constant k prime subscript i and a reverse rate constant k subscript minus i.