In a ‘coupled reaction’ where ATP hydrolysis is used to power endergonic reactio
ID: 172182 • Letter: I
Question
In a ‘coupled reaction’ where ATP hydrolysis is used to power endergonic reactions (such as the production of e.g. proteins or amino acids, or similar compounds), what is the overall deltaG value of the reaction? Would it be classified as spontaneous or non-spontaneous? Make sure you describe the basic principles of coupled reactions in your answer. Use terms such as positive deltaG value, spontaneous reaction, negative deltaG value, non-spontaneous reaction, coupled reactions, energy releasing, requiring energy input.
Explanation / Answer
answers: Spontaneous reaction: Decrease in enthaply , increase in entropy - products favoured k>1, free energy < 0 means that spontaneous reaction
Non-spontaneous reactions : Increase in enthaply, decrease in entropy - reactants favoured k<1 , free energy > 0 means that non-spontaneous reactions.
Rate of coupling : When two reactions are coupled, they can be added together give an overall reactions.
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