My biology notes define aerobic respiration as when oxygen is used as a terminal electron acceptor.
What I’m wondering is that can oxygenic photophosphorylation, using NAPH as a terminal electron acceptor, still be considered aerobic respiration?
Probably your notes do not end as you did, but probably continue with something like "in respiration", right?
Photophosphorylation is not respiration.
how about defining aerobic as respiration that requires oxygen
safe and sound
NAPH is produced in anaerobic respiration.
and one more thing that you should keep in mind is that the final electron and hydrogen acceptor is oxygen