Citric Acid Cycle - Products


Products of the first turn of the cycle are: one GTP (or ATP), three NADH, one QH2, two CO2.

Because two acetyl-CoA molecules are produced from each glucose molecule, two cycles are required per glucose molecule. Therefore, at the end of two cycles, the products are: two GTP, six NADH, two QH2, and four CO2

Description Reactants Products
The sum of all reactions in the citric acid cycle is: Acetyl-CoA + 3 NAD+ + Q + GDP + Pi + 2 H2O → CoA-SH + 3 NADH + 3 H+ + QH2 + GTP + 2 CO2
Combining the reactions occurring during the pyruvate oxidation with those occurring during the citric acid cycle, the following overall pyruvate oxidation reaction is obtained: Pyruvate ion + 4 NAD+ + Q + GDP + Pi + 2 H2O → 4 NADH + 4 H+ + QH2 + GTP + 3 CO2
Combining the above reaction with the ones occurring in the course of glycolysis, the following overall glucose oxidation reaction (excluding reactions in the respiratory chain) is obtained: Glucose + 10 NAD+ + 2 Q + 2 ADP + 2 GDP + 4 Pi + 2 H2O → 10 NADH + 10 H+ + 2 QH2 + 2 ATP + 2 GTP + 6 CO2

The above reactions are balanced if Pi represents the H2PO4- ion, ADP and GDP the ADP2- and GDP2- ions, respectively, and ATP and GTP the ATP3- and GTP3- ions, respectively.

The total number of ATP obtained after complete oxidation of one glucose in glycolysis, citric acid cycle, and oxidative phosphorylation is estimated to be between 30 and 38. A recent assessment of the total ATP yield with the updated proton-to-ATP ratios provides an estimate of 29.85 ATP per glucose molecule.

Read more about this topic:  Citric Acid Cycle

Other articles related to "products, product":

Zipp - Products - Wheels
... dealers and consumers alike noted an increase in the cost of Zipp products, stemming from aircraft manufacturers Boeing and Airbus placing a strain on the carbon fiber ... New products announced for 2008 included the redesigned 202 - a light-weight (1070g) climbing racing wheel featuring a revamped, deeper section rim, the world's deepest conventional, non-disc TT and tri wheel (1 ... Zipp’s 2010 product line featured two new wheel models ...
Kimberly-Clark - Major U.S. Consumer Product Lines
... Cottonelle Cottonelle is a brand name for bath products ... Product forms include premium bath tissue and flushable moist wipe products ... Depend Depend is a brand name for incontinence products worn by adults ...
Bacon Flavored Products
... of bacon in the United States has given rise to a number of commercial products that promise to add bacon flavoring without the labor involved in cooking it or the perceived negative qualities ... Some of the more unusual products are evidence of the recent fad, including Bacon vodka, bacon peanut brittle, bacon toothpaste, baconnaise (bacon mayonnaise), bacon salt and bacon mints ... A range of inedible products are also available including bacon bandaids, scarfs, soaps, perfumes and air fresheners ...

Famous quotes containing the word products:

    It seemed there was a sort of poisoning, an auto-infection of the organisms, so Dr. Krokowski said; it was caused by the disintegration of a substance ... and the products of this disintegration operated like an intoxicant upon the nerve-centres of the spinal cord, with an effect similar to that of certain poisons, such as morphia, or cocaine.
    Thomas Mann (1875–1955)

    Good wine needs no bush,
    And perhaps products that people really want need no
    hard-sell or soft-sell TV push.
    Why not?
    Look at pot.
    Ogden Nash (1902–1971)

    The measure discriminates definitely against products which make up what has been universally considered a program of safe farming. The bill upholds as ideals of American farming the men who grow cotton, corn, rice, swine, tobacco, or wheat and nothing else. These are to be given special favors at the expense of the farmer who has toiled for years to build up a constructive farming enterprise to include a variety of crops and livestock.
    Calvin Coolidge (1872–1933)