Answer
More chlorophyll molecules will lead to more yield of oxygen; less chlorophyll molecules will lead to less yield.
Work Step by Step
More or less chlorophyll molecules will allow more or less capture of photons of light. This will lead to more or less oxygen production. If the change in the number of chlorophyll molecules leads to a change in the number of photosystems, rather than just changing the number of photosystems, the effect of changing the number of chlorophyll molecules will be even more dramatic.
