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a level biology atp
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hello83
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"bond formation releases energy and bond cleavage uses energy in atp" i thought when the bonds are broken in atp energy is released, because of the equation "atp +h2o --> adp + inorganic phosphate + energy"
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lunariumxo
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we did this in class and yes i don't understand the complicated definition but all we need to know is that bond broken releases energy
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Jpw1097
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#3
(Original post by hello83)
"bond formation releases energy and bond cleavage uses energy in atp" i thought when the bonds are broken in atp energy is released, because of the equation "atp +h2o --> adp + inorganic phosphate + energy"
"bond formation releases energy and bond cleavage uses energy in atp" i thought when the bonds are broken in atp energy is released, because of the equation "atp +h2o --> adp + inorganic phosphate + energy"
The energy released during the reaction not only depends on whether it is endothermic or exothermic, but also whether there is an increase in entropy (entropy = disorder/chaos). ATP hydrolysis increases the entropy of the system, releasing energy. The energy released due to the increase in entropy is greater than that requires to break the bonds in ATP, and so free energy is released.
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Jpw1097
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(Original post by lunariumxo)
we did this in class and yes i don't understand the complicated definition but all we need to know is that bond broken releases energy
we did this in class and yes i don't understand the complicated definition but all we need to know is that bond broken releases energy
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Reality Check
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(Original post by hello83)
"bond formation releases energy and bond cleavage uses energy in atp" i thought when the bonds are broken in atp energy is released, because of the equation "atp +h2o --> adp + inorganic phosphate + energy"
"bond formation releases energy and bond cleavage uses energy in atp" i thought when the bonds are broken in atp energy is released, because of the equation "atp +h2o --> adp + inorganic phosphate + energy"
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Reality Check
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(Original post by Jpw1097)
Ahh, this never made sense to me either. The hydrolysis of ATP is indeed endothermic (that is, requires energy to break the bonds). However, the reaction is exergonic, this means it releases free energy.
The energy released during the reaction not only depends on whether it is endothermic or exothermic, but also whether there is an increase in entropy (entropy = disorder/chaos). ATP hydrolysis increases the entropy of the system, releasing energy. The energy released due to the increase in entropy is greater than that requires to break the bonds in ATP, and so free energy is released.
Ahh, this never made sense to me either. The hydrolysis of ATP is indeed endothermic (that is, requires energy to break the bonds). However, the reaction is exergonic, this means it releases free energy.
The energy released during the reaction not only depends on whether it is endothermic or exothermic, but also whether there is an increase in entropy (entropy = disorder/chaos). ATP hydrolysis increases the entropy of the system, releasing energy. The energy released due to the increase in entropy is greater than that requires to break the bonds in ATP, and so free energy is released.
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