Photosynthesis Review Questions

1.) In the two weeks the plants didn't get watered, they weren't able to properly photosynthesize. They need water, carbon dioxide, and sunlight in order to successfully photosynthesize. Its similar to humans only getting food and no water. We wouldn't die right away, but without water, there isn't much hope. Without water, the light dependent cycle cannot function correctly, therefore the plant cannot create its own food. Which is a problem because plants are autotrophs, so they have to create their own food.

2.) If the stomata is closed, that would cause problems for the plant. The stomata closes when the plants need to conserve the H20, 02, and CO2 inside of the plant. However the problem with the stomata closing is that it doesn't allow anything in or out of the plant. So basically none of the C02 needed for photosynthesis can't get inside, which will stop the Calvin Cycle(light independent cycle).