All biological molecules and cell organelles are chemo mechanically controlled systems known to every biologist. The control signals governing them are electrical. The influence of an electric field in them makes a disturbance such that they behave as an electronic distributed network. It is an interdisciplinary art to activate them and work as an electronic device. Modeling the biological molecules as per the devices is by understanding their stability and work functions. Here a micro tubule (MT) molecule is modeled to function as a diode in electronic parameters, there by not disturbing its biological function. The MT is similar to its other cytoskeleton filament. In its two dimers alpha and beta, in the tunneling effect of the ions, can establish the diode characteristics in its conductivity of electric ionic current.