Answer:
The electron transport system takes place within the cristae of the mitochondria, where the cytochromes (enzymes) and coenzymes exist. It is a series of proteins that move electrons through a membrane within mitochondria to produce a gradient of protons that activates the production of adenosine triphosphate (ATP).
The electron transport system
in the light dependent reaction of photosynthesis plays a crucial role in the creation of electrons that are employed as precursor for NADPH production.
If it was diabled, there would be no flow of electrons from PSII to PSI. Ferredoxin would be dormant since there is no electrons to pass to NADP+ which in turn will lead to no production of NADPH.
The NADPH and the respective molecules that are made in the course of the light dependent reaction are employed in the course of the dark reaction to form sugar molecules.
So, if the electron transport system in the light-dependent reaction of photosynthes is disabled, glucose molecule will not be formed in the course of the dark reaction.