Question

what is the compairson of photosynthetic production of electricity with that of a solar cell

Answer 1

in a solar cell (PVC, for example) the sunlight directly causes release of electrons from the silicon in the cell, leading to generation of electric current.

in a photosynthetic cell, light also causes the release of an electron, but this time from an organic compound called chlorophyll. This electron does not generate current but rather powers a transport chain that ultimately results in production of sugars and other nutrients for the plant.

hope that helps.