-
Essay / Photosynthesis Essay - 1252
Module 2 Resource Acquisition - Plant Structures and PhotosynthesisIntroductionIn Module 2 Resource Acquisition - Plant Structures and Photosynthesis, we looked at much of the plant kingdom. During this lab exam, we learned how important and necessary photosynthesis is not only for plants but for all life on this planet. Photosynthesis takes place a lot during its production. We focused on C3 and C4 plants, both of which have different photosynthesis processes. C3 plants get their name from the 3-carbon compound with which CO2 was first contained. C3 photosynthesis begins with the 3-carbon compound and the opening of the stomata. Then the enzyme rubisco, which participates in photosynthesis and also in the absorption of CO2. Then photosynthesis occurs on the leaf. Just like C3, C4 plants got their name from the 4-carbon compound in which CO2 was involved. C4 also starts with the opening of the stomata but uses the enzyme, PEP carboxylase, which allows CO2 to be quickly absorbed by the plant. This allows CO2 to be delivered to the rubisco to start photosynthesis. Photosynthesis in C4 plants begins in the inner cells. C4 plants photosynthesize faster under high light and temperatures because, as I mentioned, the CO2 is delivered directly to the rubisco. Being directly delivered gives it no chance to gather oxygen and go through photorespiration. C3 plants are the opposite, they are more affected in humid, cool conditions with normal lighting. This process requires fewer enzymes. (Types of Photosynthesis) For this experiment, our goals were: “1) Use an O2 sensor to measure the amount of oxygen gas consumed or produced by a plant during respiration and photosynthesis. 2) Use the CO2 gas sensor... middle of paper ...... even if that data was incorrect. In module 2, the hypothesis stated; “The rate of photosynthesis will be influenced by the type of plant examined given the different types of carbon fixation. The greatest rate of CO2 decrease in the room will indicate which plant has the best rate of photosynthesis. » (Module 2) The data collected confirms this hypothesis because C4 plants had the greatest reduction in CO2 compared to C3. "Stated in a research article that the increase in global average near-surface air temperature, once equilibrium is restored, follows an abrupt doubling of atmospheric CO2 concentration." (Caldeira, K., Myhrvold, NP) This is important for C4 plants, as it can lead to increased production of C4 plants. Today, zea mays (corn) is one of the most abundant crops we have, with CO2 continuing to rise, perhaps this is why production is so abundant..