Here's how the electron transport chain works.
Porphyrin compounds collectively called biochromes are produced by the pineal gland and they intensely absorb and re-emit light energy. They exist in all cells, are particularly abundant in all lamellae, stem cells, bone marrow, at nerve ending and in hemoglobin. They also form linear or chain compounds called bilichromes used in human cellular structures and we also have over 200 types of light sensitive cytochromes that have even been classified according to the frequencies they absorb. Our external and internal membranes consists of 20% biochromes and our bodies have a wide distribution of yellow, orange and red light-absorbing pigments called carotenoids. This proliferation of light-sensitive compounds at critical loci throughout our bodies is no accident.
Human lamellae contain an abundance of porphyrin compounds! In our visual system lamellae absorb light energy and convert it into 'electrical excitation' so we see. In sperm cells, lamellae in the 'tail' absorb light energy and convert it into 'electrical excitation' resulting in the tail's 'swimming movements'. It is sheer nonsense to suggest that our mitochondrial lamellae do not perform the same function! It is the absorption of radiant energy by mitochondrial lamellae that causes the electron flow which catalyses all the (familiar) physical processes associated with the electron transport chain and ADP/ATP conversion.