منابع مشابه
Studies on Biological Oxidations
Introduction ........................................................ 691 Methods ............................................................ 693 Oxidation of carbohydrates by gonococci ............................ 694 “ “ hydroxy acids .......................................... 695 “ “ ketonic “ .......................................... 698 Organic acids and other substrates not oxidized by ...
متن کاملStudies on Biological Oxidations
Pyruvic acid is one of the most reactive substances among those of importance in cellular metabolism. When carbohydrate is split during fermentation, pyruvic acid is the main end-product of the resulting series of phosphorylated oxidation-reductions. It thus becomes the immediate source for the formation of both lactic acid and alcohol. Pyruvic acid is decarboxylated by yeast; it may react with...
متن کاملMechanisms of Biological Oxidations
This book deals with chemical reactions catalyzed by oxidative enzymes. The first eight chapters discuss enzyme action in zitro, while a short final chapter is devoted to oxidations in organized systems. The mechanisms are described, as in classical organic chemistry, in terms of the most probable intermediate reactions. The author points out that our knowledge of the transformation of energy i...
متن کاملOn Biological Oxidations as Function of Temperature
1. The critical thermal increments are calculated for respiratory processes (O(2) consumption, CO(2) production) in various plants and animals. They are characteristically found to be of two, possibly three, types: micro = 11,500, and 16,100 or 16,700. The first is commonly encountered above 15 degrees , the second below that temperature, but these relations may be reversed. (The value of micro...
متن کاملThe Rôle of Phosphate in Biological Oxidations
1. The effect of phosphate on the oxidation of glyceric aldehyde by methylene blue, 1-naphthol 2-sulfonate indophenol, and phenol-indophenol has been studied. 2. At pH 4.77 in a phthalate-buffered medium phosphate does not catalyze the reaction. 3. At pH 7.9 in solutions buffered with borate, carbonate, or phenylalanine marked catalysis by phosphate is observed. The effect is most pronounced in...
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ژورنال
عنوان ژورنال: Journal of Biological Chemistry
سال: 1934
ISSN: 0021-9258
DOI: 10.1016/s0021-9258(18)75376-3