Question #ede88

1 Answer

Photosystem I was actually discovered before Photosystem II, but we didn't understand how they worked at that time

Explanation:

Photosystem II (which is the series of proteins which carry out the first set of reactions in photosynthesis) was characterized later than Photosystem I. Photosystem I was first described in the 1950s, but it wasn't until the early 1960s that we really figured out how all of these parts fit together, and by that time the two photosystems had already been named and talked about in the scientific literature... it was too late to change the names without confusing everyone who had been working on them so long!