John's area of specialization is structure-function relationships within photosynthetic reaction centers and the mechanism by which light is converted into chemical-free energy in photosynthesis.
(John's area of specialization; is; structure-function relationships within photosynthetic reaction centers and the mechanism) (light; is converted; into chemical-free energy)
John's area of specialization light
is is converted
structure-function relationships within photosynthetic reaction centers and the mechanism
into chemical-free energy