2007-09-09 03:50:06 · 2 answers · asked by Anonymous in Science & Mathematics ➔ Biology
Listen to David, science and I don't see eye to eye. I came from a family in science and medical backgrounds but I got left out.:))
2007-09-09 04:08:57 · answer #1 · answered by Squirt 7 · 1⤊ 0⤋
The citric acid cycle [also known as the tricarboxylic acid (TCA) cycle, the Krebs cycle, or Szent-Györgyi-Krebs cycle (after Hans Adolf Krebs and Albert Szent-Györgyi who first determined the chemical intermediates and reaction sequence of the cycle)] is a series of enzyme-catalysed chemical reactions of central importance in all living cells that use oxygen as part of cellular respiration. In aerobic organisms, the citric acid cycle is part of a metabolic pathway involved in the chemical conversion of carbohydrates, fats and proteins into carbon dioxide and water to generate a form of usable energy. It is the third of four metabolic pathways that are involved in carbohydrate catabolism and ATP production, the other three being glycolysis and pyruvate oxidation before it, and electron transport chain after it.
The citric acid cycle also provides precursors for many compounds such as certain amino acids, and some of its reactions are therefore important even in cells performing fermentation.
2007-09-09 10:59:21 · answer #2 · answered by David 4 · 1⤊ 0⤋