Cellular Respiration Lab Report

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INTRODUCTION: All living things perform cellular respiration for energy. Cellular respiration is the process when cells produce energy by breaking down sugars and food. During cellular respiration, glucose is broken down into carbon dioxide, water and energy. Carbon dioxide is the waste. Cellular respiration can be aerobic (oxygen is present) or anaerobic (no or low oxygen present). Anaerobic respiration takes place in the fluid part of the cytoplasm. Aerobic respiration takes place in the mitochondria. There are three stages to cellular respiration - glycolysis, fermentation, and the Krebs Cycle. The equation for cellular respiration is: 6O2 + C6H12O6 6CO2 + Energy oxygen + glucose …show more content…

It is a process when one molecule of glucose is split in half, resulting in two pyruvic acid molecules. Glycolysis produces ATP and NADH. ATP carries energy within the cells for metabolism. Two ATP molecules are used to begin the glycolysis. When the process has completed itself, four ATP are produced. NADH produces energy from food and carries electrons within the cells. During the production of NADH, four high energy electrons are removed and are passed along to the electron carrier, NAD+. NAD+ passes these electrons along to another electron carrier, NADH. NADH holds on to the electrons until they can be transferred to other molecules. (Miller, Levine, 2004. Cellular Respiration, Prentice Hall Biology, New Jersey. Pearson Prentice …show more content…

It is a process of energy extracting reactions from pyruvic acid that is broken down into carbon dioxide. Pyruvic acid during the Krebs cylcle produces carbon dioxide, NADH, ATP, and FADH2. It is a series of reactions in the mitochnodria. It is also known as the citric acid cycle because citric acid is the first compound formed. The Krebs cycle is named after a British biochemist who introduced it in 1937, Hans Krebs. ( Miller, Levine, 2004. Cellular Respiration, Prentice Hall Biology, New Jersey. Pearson Prentice Hall). A molecule, Acetyl-CoA, combines with oxaloacetate to form citric acid. The citric acid loses carbon dioxide and then electrons are transferred to NAD+ to create NADH. Three molecules of NADH are produced. In the last stage of the Krebs cycle, oxaloacetate regenerates and combines with Acetyl-CoA. Another cycle will then

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