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11 Μαρ 2013 · The summary includes 3 main points: 1) Cellular respiration harvests chemical energy from glucose and other organic molecules through three main stages: glycolysis, the citric acid cycle, and oxidative phosphorylation. 2) During glycolysis, glucose is broken down into two pyruvate molecules.
14 Μαρ 2013 · Lec04 pyruvate met. The document outlines the fates of pyruvate and the energy yields from glycolysis. It discusses: 1) Pyruvate can be reduced to lactate by lactate dehydrogenase under anaerobic conditions, oxidatively decarboxylated to acetyl-CoA by pyruvate dehydrogenase in aerobic conditions, or carboxylated to oxaloacetate.
19 Ιουλ 2011 · Pyruvate can enter three pathways. Under aerobic conditions, it is converted to acetyl-CoA which enters the citric acid cycle to generate energy and is used in fatty acid biosynthesis. Under anaerobic conditions, pyruvate is converted to either lactate using lactate dehydrogenase or ethanol in yeast via alcoholic fermentation, allowing ...
Describe the Krebs Cycle as the stepwise oxidation of pyruvate. TASK: 30 kJ of energy is released when 1 mol of ATP is broken down into ADP. 1 mol of glucose contains 2870 kJ of chemical energy. If aerobic respiration produces 36 mol of ATP per mol of glucose, what % of the energy stored in glucose is a cell getting from the glucose it consumes?
The energy in the pyruvate molecules produced in glycolysis can only be released using oxygen in a process called the Krebs Cycle.
The eight steps of the cycle are a series of chemical reactions that produces the following from each of the two molecules of pyruvate produced per molecule of glucose that originally went into glycolysis (Figure \(\PageIndex{3}\)): 2 carbon dioxide molecules; 1 ATP molecule (or an equivalent)
20 Ιουλ 2014 · Krebs Cycle • The Krebs cycle is an 8-step cyclic process that oxidizes acetyl-CoA to carbon dioxide and water, forming a molecule of ATP. • In addition, the cycle removes electrons, which are carried by 3 NADH and 1 FADH2 molecules to the electron transport chain.
