Log in Sign up. Photosynthesis used two electron transport chains while cellular respiration uses one electron transport chain. However, photosynthesis stores the energy of sunlight in the form of chemical energy in sugar and starch molecules while cellular respiration breaks down organic compounds such as sugar and starch in order to produce energy in the form of ATP (energy currency). Despite the differences between these two processes, there are some similarities. Dark reaction photosynthesis, also known as the Calvin cycle, use Carbone dioxide and the newly formed NADPH to produce phosphogylcerides; the three carbon sugars could combine later to form sugar and starch. Browse. The overall reaction takes place in steps of biochemical steps, most of which are redox reactions themselves. During photosynthesis, using the light energy of sunlight, carbon dioxide, and water transform into glucose and oxygen when photosynthetic pigments are present. Let us have look at differences between Photosynthesis and Respiration side by side. Photosynthesis results in the gain of dry mass while cellular respiration results in loss of dry mass. Write. Photosynthesis is an anabolic process, whereas cell respiration is a catabolic process; Photosynthesis: Water is broken down to oxygen to release electrons for an electron transport chain Cellular respiration is a biochemical process by which cells convert the chemical energy of macromolecules into energy in the form of ATP. 2. What is Difference between Photosynthesis and Cellular Respiration? Photosynthesis and cellular respiration are two cellular processes that occur in organisms in order to produce energy. On the contrary, photosynthesis occurs in green plants, which contain chlorophyll and uses sunlight and water to convert it into energy. In photosynthesis, energy is provided by photons while in cellular respiration, energy in provided by the catabolic processes. Photosynthesis vs. Cellular respiration - - Photosynthesis and cellular respiration are complementary processes by which living things obtain needed substances. It takes place only within the chloroplast. A Venn Diagram showing Photosynthesis vs. Cellular Respiration. Cellular respiration takes place in the mitochondria of cells. During photosynthesis process, energy is stored in the form of chemical energy or glucose while in cellular respiration; energy is released in the form of ATP. 1. The main difference between photosynthesis and cellular respiration is that photosynthesis is an anabolic process, where the synthesis of organic compounds occurs, storing energy whereas cellular respiration is a catabolic process, where the stored organic compounds are utilized, producing energy. Electron transport chain occurs at the inner mitochondrial membrane. STUDY. Match. All living organisms carry out respiration: aerobic respiration in the presences of oxygen, and anaerobic respiration in the absence of oxygen. Chemiosmosis in Photosynthesis. “Cellular Respiration.” Wikipedia, Wikimedia Foundation, 22 Feb. 2019, Available here. Oxygen produced through photosynthesis is essential for the process of respiration of most living creatures on earth. This article highlights the difference between photosynthesis and cellular respiration. It must be noted that despite being a similar process, photosynthesis and respiration takes place in reverse. What is Photosynthesis Summary. 6. The main difference between photosynthesis and respiration is where it occurs, one being in plants and some bacteria and the other being in most every other living thing. Carbohydrate produced by photosynthesis is the simplest form of food that could be processed by living organisms to obtain energy. “Photosynthetic Cells.” Nature News, Nature Publishing Group, Available here. The chloroplast uses the energy harnessed from these photons and their interaction with the cytochromes and other proteins to drive the formation of glucose. For instance, in photosynthesis, the input, namely, water and carbon dioxide, generate Glucose and oxygen as by-products. Photosynthesis happens only in those cells containing chlorophyll while cellular respiration happens in all cells and it is independent of chlorophyll. Compare the Difference Between Similar Terms. Flashcards. what references did you use for this? They are the opposite of each other. Light reaction needs the photons and water to give out oxygen leading to the production of ATP and NADPH. 1- In what way does the energy involved with photosynthesis differ from the energy involved Respiration vs. Photosynthesis The process of respiration takes place in all livings, whereas the process of photosynthesis takes place in the organisms possessing chlorophyllous cells. Photosynthesis used two electron transport chains while cellular respiration uses one electron transport chain. In summary, both photosynthesis and cellular respiration are important processes occuring in living organisms in order to obtain energy. 5. The key difference between photosynthesis and cellular respiration is that photosynthesis utilizes carbon dioxide and water to produce glucose and oxygen while cellular respiration utilizes glucose and oxygen to produce energy, carbon dioxide, and water. Glycolysis occurs in the cytosol while Krebs cycle occurs in the mitochondrial matrix. Photosynthesis involves the production of NADPH while cellular respiration involves the production of both FADH and NADH. Chemiosmotic Theory states that Electron transport and ATP synthesis are coupled by a proton gradient across the inner mitochondrial membrane. The reactants for cellular respiration are … Hence, this is also a difference between photosynthesis and cellular respiration. A scientific process that explains how the plants and other organisms convert light or sun energy into chemical energy that is later on used by these organisms to fuel their activities. Differences Between Photosynthesis and Cellular Respiration. The main difference between photosynthesis and cellular respiration is that during the process of photosynthesis energy is stored while energy released in cellular respiration. Through these processes, plants obtain the carbon dioxide they need and living organisms obtain the oxygen they need. Photosynthesis is an anabolic process that ends in the production of carbohydrate molecules. 2. 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