I know some of these words...is the idea that acetate is the end result of photosynthesis, and they're just skipping that step? Or is there a different metaboli

I know some of these words...is the idea that acetate is the end result of photosynthesis, and they're just skipping that step? Or is there a different metabolic pathway that plants have which accepts acetate if it is in the environment but falls back to photosynthesis if it is not?