Plausibility of Quantum Coherent States in Biological Systems

In this paper we briefly discuss the necessity of using quantum mechanics as a fundamental theory applicable to some key functional aspects of biological systems. This is especially relevant to three important parts of a neuron in the human brain, namely the cell membrane, microtubules (MT) and ion channels. We argue that the recently published papers criticizing the use of quantum theory in these systems are not convincing.
Comment: 10 pages, no figures. DICE 2010, In press in Journal of Physics, Conf. Ser