1. Plants need water in order to survive. Because the plants hadn't been watered in two weeks and water is one of the reactants of photosynthesis, it is needed to create the products of glucose and oxygen. Glucose, being the food for the plant was not being produced so the plant had no food.
2. The stomates allow CO2 to be taken into the plant or O2 to be released. Because they were closed, this could not happen. This affects the Calvin Cycle because the plant could not release the O2.
1) How is water used in PS?
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