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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.
It takes two turns of the cycle to process the equivalent of one glucose molecule. Each turn of the cycle forms three high-energy NADH molecules and one high-energy FADH 2 molecule. These high-energy carriers will connect with the last portion of aerobic respiration to produce ATP molecules.
Learning Objectives. In this section, you will explore the following question: How is pyruvate, the product of glycolysis, prepared for entry into the citric acid cycle? What are the products of the citric acid cycle? Connection for AP ® Courses.
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.
8 Απρ 2019 · Pyruvate Structure. This molecule is the conjugate base of pyruvic acid, a three-carbon molecule containing a carboxylic acid group and a ketone functional group. The chemical formula for pyruvic acid is C 3 H 4 O 3 and for its deprotonated form is C 3 H 3 O 3. The carbon atom forming the carboxylic acid is often referred to as the first carbon ...
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.
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.
