The first day of my first course in Biology was about Quantum Chemistry. (The last course of that year was on global ecology. Biology is a rather wide field!)

Quantum effects really do have something to do with it, (and from there on organic chemistry, organelles, and cell biology) but it seems to me that describing human behavior in terms of quantum interactions might be somewhat tedious, to say the least.

Probably looking at the level of neural networks would be more pragmatic, especially seeing the advances we're now making with artificial neural networks.