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Photosynthesis and Respiration
Transcript of Photosynthesis and Respiration
The carbon dioxide is combined with a special carbohydrate (RuBp) and then the ATP and the NADPH from before are added too. This brings up an interesting question: Respiration When organisms have the organic compounds they need, They next have to convert those compounds into the energy they need or store it. This occurs in the process of... So what is respiration? During cellular respiration, Cells break down organic compounds to release energy that is used to create ATP. So, how does cellular respiration occur? It all starts with glycolysis.... Glycolysis Glycolysis is the process in which a glucose molecule goes through a series of transformations that result in two molecules of pyruvic acid and two molecules of ATP. The Photosynthesis Song Next, the pyruvic acid will be put through the process of either anaerobic or aerobic respiration. Anaerobic respiration Also known as fermentation, anaerobic respiration occurs when oxygen is not present in a cell. Fermentation produces more NAD+ which helps keep the process of glycolysis going. Aerobic Respiration When there is oxygen in a cell that has just gone through the process of glycolysis, the cell will also under-go aerobic respiration. This process will directly create a large amount of ATP. The pyruvic acids are sent to the mitochondria and are made into a molecule called Acetyl CoA Next, in the Krebs Cycle, in the mitochondrial matrix, electrons are extracted from Hydrogen atoms to make ATP. This produces CO2, H20, 4 ATP's, and a lot of NADH. In the cristae of the mitochondria, the electrons of hydrogen atoms are carried by the NADH and go through another process of swapping electrons which eventually results in 32 ATP's being produced. This process takes place in the ctyosol. In what kinds of organisms does respiration take place? Fermentation occurs in the cytoplasm of the cell. All organisms use the process of Cellular Respiration Cellular Respiration Song Stats Reactants: glucose and oxygen Products: ATP, carbon dioxide, water Aerobic Respiration Fermentation Products: ethanol or lactic acid, carbon dioxide, ATP Aerobic Animals Anaerobic Some fungi Yeast Zebra