  We discuss possible quantum mechanical aspects of MicroTubules (MT), based on
recent developments in quantum physics.We focus on potential mechanisms for
`energy-loss-free' transport along the microtubules, which could be considered
as realizations of Fr\"ohlich's ideas on the r\^ole of solitons for
superconductivity and/or biological matter. By representing the MT arrangements
as cavities,we present a novel scenario on the formation of macroscopic (or
mesoscopic) quantum-coherent states, as a result of the
(quantum-electromagnetic) interactions of the MT dimers with the surrounding
molecules of the ordered water in the interior of the MT cylinders. We suggest
specific experiments to test the above-conjectured quantum nature of the
microtubular arrangements inside the cell. These experiments are similar in
nature to those in atomic physics, used in the detection of the Rabi-Vacuum
coupling between coherent cavity modes and atoms. Our conjecture is that a
similar Rabi-Vacuum-splitting phenomenon occurs in the MT case.
