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The students will learn that: 1) the variables of light intensity, temperature, carbon dioxide, light quality all influence the rate of photosynthesis. 2) photosynthesis requires carbon dioxide to furnish the carbon required to make glucose.This carbon dioxide will be supplied by sodium bicarbonate dissolved in the water with the plant leaf disks.he students will learn that: 1) the variables of light intensity, temperature, carbon dioxide, light quality all influence the rate of photosynthesis. 2) photosynthesis requires carbon dioxide to furnish the carbon required to make glucose.
During this process of sugar production, carbon dioxide combines with water to. form glucose and oxygen is released. Oxygen that is produced in photosynthesis. is given off as a gas. If a lot of oxygen is being given off, photosynthesis is. occurring rapidly. If little oxygen is being given off, photosynthesis is. occurring slowly. The amount of trapped light energy and the amount of carbon. dioxide available affects the rate of photosynthesis. The purpose of adding sodium bicarbonate powder to the water increases the. amount of carbon dioxide in the water.