Imagine that you have developed a drug that prevents photosystem I -- but NOT photosystem II -- from absorbing light energy. What effect would this have on a plant cell? Pick an option The cell would stop producing NADPH, and therefore stop fixing carbon dioxide.

The cell would stop producing NADPH, and therefore stop oxidizing glucose.

The cell would no longer be able to generate a proton gradient in the chloroplast, and therefore the lumen's pH would become lower.

The cell would no longer be able to generate a proton gradient in the chloroplast, and therefore would need more ATP from the mitochondria.