  Recently it has been discovered---contrary to expectations of physicists as
well as biologists---that the energy transport during photosynthesis, from the
chlorophyll pigment that captures the photon to the reaction centre where
glucose is synthesised from carbon dioxide and water, is highly coherent even
at ambient temperature and in the cellular environment. This process and the
key molecular ingredients that it depends on are described. By looking at the
process from the computer science view-point, we can study what has been
optimised and how. A spatial search algorithmic model based on robust features
of wave dynamics is presented.
