3.7 Cell Respiration
Define Cell-Respiration
Cell Respiration: controlled release of energy in the form of ATP from organic compounds in cells.
Explain that, during aerobic cell respiration, pyruvate can be broken down in the mitochondrion into carbon dioxide and water with a large yield of ATP.
In aerobic respiration pyruvate is broken down in the mitochondrion into carbon dioxide and water with a large yield of ATP. If oxygen is available, the pyruvate is absorbed by mitochondrion. The pyruvate is then broken down into carbon dioxide and water. A large amount of ATP is produced.
Explain that, during anaerobic cell respiration, pyruvate can be converted in the cytoplasm into lactate, or ethanol and carbon dioxide, with no further yield of ATP.
In anaerobic cell respiration pyruvate is converted into lactate or ethanol dioxide in the cytoplasm with no further yield of ATP. Lactic fermentation: In the process of glycolysis glucose is transferred into two pyruvate. Since no oxygen is available, the Krebs cycle cannot run which therefore also stops the process of the electron transport chain. Too much pyruvate is built up in the cytoplasm and we need to get rid of it. Therefore, it is transferred into the waste product - lactate - that can be removed from the cell. No ATP is produced. Alcohol fermentation: since there is no oxygen, pyruvate is transferred into ethanol/alcohol and carbon dioxide is created as a bi-product. This is how an one-celled organisms overcome oxygen deficiency.
State that, in cell respiration, glucose in the cytoplasm is broken down by glycolysis into pyruvate, with a small yield of ATP.
In cell respiration, glucose in the cytoplasm is broken down into pyruvate with a small yield of ATP. Glucose is organic compound that is sometimes used in cell respiration. Chemical reactions break Glucose into a simpler compound called pyruvate. A small amount of ATP (2 ATP) is produced by using energy released from glucose.
