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How pyruvate from glycolysis is converted to acetyl CoA so it can enter the citric acid cycle. Pyruvate is modified by removal of a carboxyl group followed by oxidation, and then attached to Coenzyme A.
18 Δεκ 2021 · Describe how pyruvate, the product of glycolysis, is prepared for entry into the citric acid cycle. If oxygen is available, aerobic respiration will go forward. In eukaryotic cells, the pyruvate molecules produced at the end of glycolysis are transported into mitochondria, which are the sites of cellular respiration.
The citric acid cycle (CAC or TCA- tricarboxylic acid cycle) is also known as the Krebs cycle. During the conversion of pyruvate into the acetyl group, a molecule of CO 2 and two high-energy electrons are removed.
8 Απρ 2019 · Pyruvate is an important molecule that is present at the intersection of multiple biochemical pathways. It is commonly encountered as one of the end products of glycolysis, which is then transported to the mitochondria for participating the citric acid cycle.
Key Points. In the conversion of pyruvate to acetyl CoA, each pyruvate molecule loses one carbon atom with the release of carbon dioxide. During the breakdown of pyruvate, electrons are transferred to NAD+ to produce NADH, which will be used by the cell to produce ATP.
Overview of the Citric Acid Cycle. In eukaryotic cells, the pyruvate molecules produced at the end of glycolysis are transported into mitochondria, which are sites of cellular respiration. If oxygen is available, aerobic respiration will go forward.
Learning Objectives. By the end of this section, you will be able to: Explain how a circular pathway, such as the citric acid cycle, fundamentally differs from a linear pathway, such as glycolysis. Describe how pyruvate, the product of glycolysis, is prepared for entry into the citric acid cycle.
