The grooming phase happens when pyruvate itself does not enter the citric acid cycle. It loses a carbon dioxide molecule at this point. "Grooming" means that.
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During the anaerobic phase of cellular respiration, glycolysis occurs in the cytoplasm and produces a net of 2 molecules of ATP per glucose molecule. This process does not involve the production of molecules like in the citric acid cycle or electron transport chain.
The preparatory reaction phase of cellular respiration does not produce ATP directly. This phase involves the conversion of pyruvate to acetyl-CoA, which is a preparatory step for the citric acid cycle where ATP is produced.
The anaerobic phase of respiration actually occurs in the cytoplasm outside of the mitochondria. This phase involves glycolysis, where glucose is broken down into pyruvate to generate ATP in the absence of oxygen. The pyruvate can then enter the mitochondria for further processing in the aerobic phase of respiration if oxygen is available.
The second stage of cellular respiration is the transition phase. It links glycolysis with the Kreb's cycle. At this stage, the pyruvic acid is broken down into carbon dioxide in a series of energy-extracting reactions.
The most ATP is created when NADH+ is reduced in the electron transport chain to NAD which causes a proton gradient that is then pumped through ATP synthase (and enzyme) creating most of the ATP in Cellular Resp.
Electron Transport.
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the electron transport chain
Pyruvate dehydrogenase complex
The cellular respiration process has three phases. These stages are glycolysis, the citric acid cycle, and the electron transport chain.
The oxidative phase of the pentose phosphate pathway
Electron transport chain
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Pyruvate dehydrogenase complex . . . mitochondrial matrix
In the first phase, commonly referred to as glycolysis, 1 glucose molecule is converted into 2 pyruvates.
Glycolysis is the only phase of cellular respiration that can occur without oxygen. This process takes place in the cytoplasm of cells and converts glucose into pyruvate, producing a small amount of ATP in the absence of oxygen.
A glucose molecule is broken down.Two pyruvate,2 ATP,2NADH are produced.