Q30. When a culture of Chlamydomonas cells is placed in a Petri dish and exposed to HIGH intensity light, the cells will migrate away from the light. They move away from the light because the light is potentially harmful. How could high intensity visible light be harmful?   A. High light can randomly ionize membrane lipids causing their breakdown. B. High light can heat up the cells causing protein denaturation. C. High light can donate electrons from photons to O2 producing reactive oxygen molecules. D. High light can increase the amounts of P680+, which is potentially harmful.

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Photosynthesis

Plants have a capacity that we humans can only imagine— the ability to produce food from sunlight. Sure, we can prepare some dishes that we can savor on, but it become possible because of the plants (as they serve as a producers of all the raw materials required). Photosynthesis is the method of assembling carbohydrates with the aid of sunlight.