Absence of oxygen means anaerobic respiration ; which has 2 different pathways.
First Pathway ; Alcoholic fermentation which takes place in yeast.
Pyruvate is decarboxylated into ethanal releasing co2 as waste product.
Ethanal is toxic , so its reduced by help of NADH to ethanol in presence of alcohol dehydrogenase enzyme , and Free NAD is released to continue glycolysis.
2) The second pathway is Lactic fermentation which takes place in mammalian muscles.
Pyruvate accepts hydrogen and is converted to lactate by the help of enzyme lactate dehydrogenase , again free NAD is released to continue glycolysis.
Hope I made it clear enough :)
Bonjour, je ne connais pas beaucoup le français, je suis donc traductrice. De mon point de vue, je suggère d'utiliser les informations dont vous disposez et de les utiliser sur le graphique. J'espère que cela a aidé.
B. Clade 1 is ancestral to all the other clades
Tourism can affect the swamp water, if traveled on a boat, with all the oil and stuff that is needed to get the boat running, and over hunting, can slowly kill all the crocodiles that live there affecting the crocodile population! <span />
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How Giant Tube Worms Survive at Hydro thermal Vents. In a process called chemo-synthesis, symbiotic bacteria inside the tube worm use hydrogen sulfide spewed from the vents as an energy source for themselves and for the worms.
Explanation:
