It is emphasized that the initial step after the hydrolysis of ATP is a quantum mechanical state of the protein which catalyses the reaction. The Davdydov/Scott model proposes a very specific state for this step, namely, a well-known vibrational excited state of the peptide group called amide I. According to equations (6,7) in section 2, which satisfy both the quantum statistics of the amide I excitation and the classical statistics of lattice, the amide I excitation follows a stochastic path from the active site to other regions of the protein. This is a robust way of transferring energy without loss and may constitute the first step in the many cellular processes which are powered by the hydrolysis of ATP.