P3H4O1T1O1S1Y4S1T1E1M3
21 points
PHOTOSYSTEM is validvalid
[n PHOTOSYSTEMS]
either of two photochemical reaction centers consisting chiefly of photosynthetic pigments complexed with protein and occurring in chloroplasts [n -S]
[n PHOTOSYSTEMS]
either of two photochemical reaction centers consisting chiefly of photosynthetic pigments complexed with protein and occurring in chloroplasts [n -S]