 The Cf is considered as a  force of reaction, which keeps the physical state of the cell close to the ground state, where all enzymatic acts work perfectly well. Given that ground state is subject to unitary evolution, this notion is proposed as a starting point in a more general strategy of quantum description of intracellular processes, termed here "Euclidean approach".
<clarity>  The Cf is considered as a  force of reaction, which keeps the physical state of the cell close to the ground state, where all enzymatic acts work perfectly well. Given that ground state is subject to unitary evolution, this notion is proposed as a starting point in a more general strategy of quantum description of intracellular processes, termed here "Euclidean approach".
 The Cf is considered as a force of reaction, which keeps the physical state of the cell close to the ground state, where all enzymatic acts work most efficiently. Ground state is subject to unitary evolution, this notion is proposed as a starting point in a more general strategy of quantum description of intracellular processes, termed here "Euclidean approach".