The "high Energy" Phosphate Bond
The energy released in ATP hydrolysis,
- ATP4- + H2O → ADP3- + Pi-
at ΔG -36.8 kJ mol−1 is large by biological standards. Pi stands for inorganic phosphate, which is protonated at biological pH. However, it is not large by inorganic standards. The term "high energy" refers to the fact that it is high relative to the amount of energy released in the organic chemical reactions that can occur in living systems.
Read more about this topic: Polyphosphate
Famous quotes containing the words high, energy and/or bond:
“The people in power will not disappear voluntarily, giving flowers to the cops just isn’t going to work. This thinking is fostered by the establishment; they like nothing better than love and nonviolence. The only way I like to see cops given flowers is in a flower pot from a high window.”
—William Burroughs (b. 1914)
“Three elements go to make up an idea. The first is its intrinsic quality as a feeling. The second is the energy with which it affects other ideas, an energy which is infinite in the here-and-nowness of immediate sensation, finite and relative in the recency of the past. The third element is the tendency of an idea to bring along other ideas with it.”
—Charles Sanders Peirce (1839–1914)
“I therefore, the prisoner in the Lord, beg you to lead a life worthy of the calling to which you have been called, with all humility and gentleness, with patience, bearing with one another in love, making every effort to maintain the unity of the Spirit in the bond of peace.”
—Bible: New Testament, Ephesians 4:1-3.