atp stored in hydrogen bonds?

[forchina]

quick question - is atp stored in hydrogen bonds?

[alondouek]

No. ATP is a molecule that stores energy.

There is, however, stored chemical energy in all bonds (and therefore, hydrogen bonds).

[forchina]

Does the stored chemical energy of all bonds that aren't in ATP molecules released as heat energy into environment during hydrolysis?

[alondouek]

Does the stored chemical energy of all bonds that aren't in ATP molecules released as heat energy into environment during hydrolysis?

Well, you have your energy stored in bonds, right? So, if you break those bonds, you release the stored energy; and yes, it is released as heat energy.

It's easiest to explain in a non-biological context. Say I have a block of plastic explosive; in this state it's fairly inert as all the energy is stored as chemical energy in bonds within the explosive. Now, I detonate that explosive - I provide enough energy to break those bonds, and the resulting explosion is the heat energy (along with other forms of energy) being released in a particularly violent manner.

[forchina]

but does some of it become stored in atp?

[Snorlax]

but does some of it become stored in atp?

You sure love your ATP.

[alondouek]

but does some of it become stored in atp?

Well if your talking on a massive, universal scale, then sort of - energy is never created nor destroyed, it just alters forms. I can elaborate on this if you like, but it's not strictly relevant to your question.

ATP is synthesised from ADP and P_i during cellular respiration. The energy that is stored in ATP is primarily from food that has been consumed and digested.

[Scooby]

Basically, we can summarise the synthesis of an ATP molecule with the following chemical equation:

ADP + Pi + Energy ---> ATP

We say that ADP has been "phosphorylated"

That energy we've "added" is stored in the high energy bonds that exist between phosphate groups in an ATP molecule


We can also represent the breakdown (hydrolysis) of ATP with this equation:

ATP ---> ADP + Pi + Energy

This process is basically how the energy in a molecule of ATP is harnessed. A high energy bond between phosphate groups in the ATP molecule is broken, which liberates some energy, and leaves us with ADP and Pi

[Bad Student]

That energy we've "added" is stored in the high energy bonds that exist between phosphate groups in an ATP molecule

In all of the diagrams I've seen, only the bond between the second and third inorganic phosphate can be broken to release energy. Can the bond between the first and second inorganic phosphate be broken?

[Yacoubb]

In all of the diagrams I've seen, only the bond between the second and third inorganic phosphate can be broken to release energy. Can the bond between the first and second inorganic phosphate be broken?

And that bond between the second and third inorganic Phosphate molecule is a very energy-rich bond, making ATP ideal as a source of energy for any endergonic reactions

[Russ]

In all of the diagrams I've seen, only the bond between the second and third inorganic phosphate can be broken to release energy. Can the bond between the first and second inorganic phosphate be broken?

Can it? Yes. Does it? No.