Some photosynthetic organisms contain chloroplasts that lack photosystem II, yet are able to survive. The best way to detect the lack of photosystem II in these organisms would be

Question

Quizplus · Accepted Answer

Photosystem II is responsible for the initial step of photosynthesis, which is the absorption of light energy to split water molecules and release oxygen. Therefore, if an organism lacks photosystem II, it will not produce oxygen in the light. Testing for the liberation of O₂ in the light would be the most accurate way to detect the absence of photosystem II.

Some Photosynthetic Organisms Contain Chloroplasts That Lack Photosystem II, Yet