ATP example

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Clarissa Nava 3H
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ATP example

Postby Clarissa Nava 3H » Sun Mar 17, 2019 12:04 am

why is the hydrolysis of a chemical negative ?

Chem_Mod
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Re: ATP example

Postby Chem_Mod » Sun Mar 17, 2019 9:36 am

The hydrolysis of every chemical is not necessarily negative but for ATP in particular when you’re breaking a bond a lot of energy is released because that bond was very unstable.

Cade Okohira 4K
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Re: ATP example

Postby Cade Okohira 4K » Sun Mar 17, 2019 6:43 pm

Hydrolysis is a catabolic reaction, in which large molecules are broken down into smaller ones. Thus, a fair amount of energy is released and the reaction is endergonic.

MariahClark 2F
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Re: ATP example

Postby MariahClark 2F » Sun Mar 17, 2019 7:28 pm

Wouldn’t the reaction be exergonic since it’s giving off energy and not requiring it?

CameronDis2K
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Re: ATP example

Postby CameronDis2K » Fri Feb 28, 2020 11:28 am

Since hydrolysis represents the breaking of bonds in a reaction, energy and heat will for sure be released (as products are favored) leading to an exothermic reaction where the deltaH is negative.

905373636
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Re: ATP example

Postby 905373636 » Fri Feb 28, 2020 12:19 pm

MariahClark 2F wrote:Wouldn’t the reaction be exergonic since it’s giving off energy and not requiring it?


In ATP's case, yes, but not all hydrolytic reactions are exergonic -- when it requires more energy than it gives off.

kevinolvera1j
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Re: ATP example

Postby kevinolvera1j » Fri Mar 13, 2020 3:35 pm

ATP happens to be a very unstable molecule due to its phosphate groups being next to each other (these phosphates all have negative charges) Thus when hydrolysis occurs, the products are at a lower energy state because they are more stable apart than together.


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