The Rate Of Photosynthesis

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The rate of photosynthesis varies with changes that occur in environmental temperature. In order to see how exactly different temperatures affect the rate, we can experiment with cotyledon plants. First, gather all the materials: 5 same size cotyledon plants, 5 clear closed containers to place the plants inside, and oxygen sensor to measure the rate of photosynthesis. Make sure to have 5 rooms with different temperatures but same amount of light and water for all plants. Control the temperatures in the rooms. Have one room be room temperature, one 10 degrees lower than the room temperature, one 20 degrees lower, one 10 degrees higher than the room temperature, and one 20 degrees higher. Place all plants in the containers each in 5 different rooms. Water each plant 1 cup, leave the lights in the room, and let the plants sit for a night. Then, put the oxygen sensor in the containers one at a time from the plant in the coldest room to the one in the warmest room. Record the highest percentage of oxygen produced for each plant. Since O2 is one of the products of photosynthesis, the percentage of oxygen produced can tell us the rate of photosynthesis. The higher the percentage the faster the rate of photosynthesis. Enzymes are responsible for photosynthesis; therefore, the highest percentage of oxygen produced will be from the plant that was placed in the room with room temperature. This indicates that the rate of photosynthesis is the fastest when the temperature is just right

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