Complex sentence: Monosaccharides, though generally more complex sugars, are made in the "dark" reactions.The term "light" reaction can be confusing as some "dark" reactions require light to be active.
Split into simpler sentences: Monosaccharides, though generally more complex sugars, are made in the "dark" reactions. Also the term "light" reaction can be confusing as a few of the "dark" reactions require light to be active.