## 6 Conclusions  
Either in the coherent or incoherent regime, the study of the energy dynamics within the FMO complex yields an important insight into other photosynthetic proteins and into the process of photosynthesis as a whole. For quantum theory, FMO complex has been the simplest biochemical nano-structure to be studied, despite sufficiently complex in physics to be faithfully described. It has let the possibility to observe and to model its quantum behavior. Quantum mechanical approaches, either experimental or theoretical, have let us understand the properties shaping its mesoscopic and  
Figure 17: Overlapped protein structure and amino acid sequence for the _fmoA_ gene in FMO complexes of _C. tepidum_ and _P. aesturii_. (**A**) Location of peptide differences (blue) and similarities (red) between both structures. (**B**) BCh organization overlapping. (**C**) Linear representation of protein structures showing residues belonging to \(\beta\)-sheets (green arrows) and \(\alpha\)-helices (pink curves). Punctual differences in the amino acid sequence (blue) in (**C**) match the sites illustrated in (**A**). Protein Data Bank files 3 EOJ (_P. aesturii_) and 3 BSD (_C. tepidum_). Generated using iCn3D. macroscopic properties [13]. Its more notable feature, its quantum functioning at room temperature, has attracted the interest in an extended part of the scientific community [23]. In the current work, the use of HEOM method has let to approach its non-markovian behavior to reproduce closely its dynamic [46]. Trough of computer simulations, scientists try to reproduce the quantum elements involved there by exploiting the most extreme master equations comprising the interaction among extended systems. This complex system has boosted the development of quantum concepts far away from those simplest just arising in microscopic systems. Those computer simulations representing the most inclusive models and challenge laws are the departing point to understand how to afford complex systems from the more basic quantum laws. We are contributed to map the quantum regime of FMO complex dynamics in terms of unique features related during the coherent regime through the one of the main pathways in the complex unveiling interesting non-monotonic behavior on them. Thus, under the functioning of such nano-structures until now described through approximated chemical laws, we are discovered how quantum mechanics operates conducting lots of phenomena shaping macroscopic notable features. In the FMO, the presence of quantum entanglement is reflected as long-lived coherence in those light-harvesting complexes representing an important connection between the quantum realm and higher systems with complex but despite natural environmental conditions for the human being [43; 52]. Quantum mechanics has provided the necessary basis for the continuous development of approximation models explaining those dynamics. Through this approach, our parametric analysis of the FMO complex allows the identification of key individual parameters and their effects on the dynamics, quantum features and efficiency of energy transfer in the coherent regime, opening the road to understand and to try its modeling. This information results in the determination of optimal operation conditions tentatively controllable. In addition to this analysis, the comparison between FMO complexes of different species (and their strains in the near future), with respect to those parameters, contributes to a quantum characterization of the different versions of the complex and the species and strains as quantum systems. It lets in the futuristic science a better comprehension about its possible genetic manipulation or applicability as technological resources [19; 64]. It establishes a relationship between the observed quantum behavior and the genetics dictating the structure on which those phenomena are observed [20].