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Overview of the citric acid cycle. The citric acid cycle—also known as the Krebs cycle, Szent–Györgyi–Krebs cycle, or TCA cycle (tricarboxylic acid cycle) [1] [2] —is a series of biochemical reactions to release the energy stored in nutrients through the oxidation of acetyl-CoA derived from carbohydrates, fats, proteins, and alcohol.
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Acetyl-CoA + H 2 O Oxaloacetate NADH +H + NAD + Malate H 2 O Fumarate FADH 2 FAD Succinate CoA + ATP (GTP) P i + ADP (GDP) Succinyl-CoA NADH + H + + CO 2 CoA NAD + Citrate H 2 O cis- Aconitate H 2 O Isocitrate NAD(P) + NAD(P)H + H + Oxalosuccinate CO 2 2-oxoglutarate Template documentation [view] [history] [purge] This page is the template for the Citric Acid Cycle Navigation template. Usage ...
The reverse Krebs cycle, also known as the reverse TCA cycle (rTCA) or reductive citric acid cycle, is an alternative to the standard Calvin-Benson cycle for carbon fixation. It has been found in strict anaerobic or microaerobic bacteria (as Aquificales ) and anaerobic archea .
The Reductive/Reverse TCA Cycle (rTCA cycle). Shown are all of the reactants, intermediates and products for this cycle. The reverse Krebs cycle (also known as the reverse tricarboxylic acid cycle, the reverse TCA cycle, or the reverse citric acid cycle, or the reductive tricarboxylic acid cycle, or the reductive TCA cycle) is a sequence of chemical reactions that are used by some bacteria and ...
To fully oxidize the equivalent of one glucose molecule, two acetyl-CoA must be metabolized by the Krebs cycle. Two low-energy waste products, H 2 O and CO 2, are created during this cycle. [12] [13] The citric acid cycle is an 8-step process involving 18 different enzymes and co-enzymes.
Download as PDF; Printable version; In other projects ... is used in the citric acid cycle – also known as tricarboxylic acid (TCA) cycle or Krebs cycle ...
Fatty acid degradation is the process in which fatty acids are broken down into their metabolites, in the end generating acetyl-CoA, the entry molecule for the citric acid cycle, the main energy supply of living organisms, including bacteria and animals. [1] [2] It includes three major steps: Lipolysis of and release from adipose tissue