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The fermentation of glucose, which occurs primarily when the glucose concentration is high or when oxygen is not available. The cells attain a maximum specific growth rate of about 0.45 hr-1 with a low biomass yield of 0.15 g dry mass per gram glucose consumed and a high respiratory quotient (the ratio of CO2 production rate to the O2 consumption rate) and a low energy yield of only about 2 ATP per mole of glucose metabolized. The stoichiometry of this reaction is

2007-10-13 12:53:08 · 2 answers · asked by Anonymous in Science & Mathematics Chemistry

2 answers

Fermentation is a process where the sugar (glucose) is used (burned) to create energy for the body. This either has to happen in a high sugar solution or when there is no oxygen around (anaerobic). This reaction takes the rate of 0.45 hr-1 with only a product produce (ATP); only 0.15 grams per gram of glucose. This is the process where the body takes sugar, puts it under a reaction and converts it to a fuel that can be used to make muscles work. There is also a lot of CO2 produced created in a process where the as the oxygen is used and this process converts it to CO2. Not much energy is produced by this reaction; about 2 ATP molecules (what our muscles burn for energy to move) per molecule of glucose that is processed. The conservation of mass in this chemical equation is…

Another words in the process of fermentation sugar is used in either a high sugar solution or in a solution without air that under goes a chemical reaction to create ATP. There isn’t much ATP produced by this reaction and there is a lot of waste CO2 created; only about 2 molecules of ATP are made per molecule of glucose. Because of the laws of conservation of mass the reaction has to be a balanced one so this limits how much ATP is created per unit of sugar.

Stoichiometry means that you have to balance the reaction since you can’t create or destroy matter.

According to Wikipedia: http://en.wikipedia.org/wiki/Fermentation_%28biochemistry%29
“Fermentation is a process of energy production in a cell under anaerobic conditions (with no oxygen required). In common usage fermentation is a type of anaerobic respiration, however a more strict definition exists which defines fermentation as respiration under anaerobic conditions with no external electron acceptor. Fermentation does not necessarily have to be carried out in an anaerobic environment, however. For example, even in the presence of abundant oxygen, yeast cells greatly prefer fermentation to oxidative phosphorylation, as long as sugars are readily available for consumption.”

ATP = Adenosine 5'-triphosphate and it is what our body uses to run on.

Stoichiometry; According to Wikipedia: http://en.wikipedia.org/wiki/Stoichiometry
“Stoichiometry rests upon the law of conservation of mass, the law of definite proportions (i.e., the law of constant composition) and the law of multiple proportions. In general, chemical reactions combine in definite ratios of chemicals. Since chemical reactions can neither create nor destroy matter, nor transmute one element into another, the amount of each element must be the same throughout the overall reaction. For example, the amount of element X on the reactant side must equal the amount of element X on the product side.”

According to Wikipedia: http://en.wikipedia.org/wiki/Adenosine_triphosphate
“Adenosine 5'-triphosphate (ATP) is a multifunctional nucleotide that is most important as a "molecular currency" of intracellular energy transfer. In this role, ATP transports chemical energy within cells for metabolism. It is produced as an energy source during the processes of photosynthesis and cellular respiration and consumed by many enzymes and a multitude of cellular processes including biosynthetic reactions, motility and cell division. In signal transduction pathways, ATP is used as a substrate by kinases that phosphorylate proteins and lipids, as well as by adenylate cyclase, which uses ATP to produce the second messenger molecule cyclic AMP.”

2007-10-13 13:18:12 · answer #1 · answered by Dan S 7 · 0 0

Where's the rest of it?

2007-10-13 13:07:08 · answer #2 · answered by Tom P 6 · 0 0

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