How does ATP release energy?

Question

activating its electrons to form ions


splitting into a phosphate ion and ADP


combining with other ATP molecules


passing electrons to NADH

Answer 1

Chemical properties

ATP consists of adenosine - itself composed of an adenine ring and a ribose sugar - and three phosphate groups (triphosphate). The phosphoryl groups, starting with the group closest to the ribose, are referred to as the alpha (α), beta (β), and gamma (γ) phosphates. The system of ATP and water under standard conditions and concentrations is extremely rich in chemical energy; the bond between the second and third phosphate groups is loosely said to be particularly high in energy. Strictly speaking, the bond itself is not high in energy (like all chemical bonds it requires energy to break), but energy is produced when the bond is broken and water is allowed to react with the two products. Thus, energy is produced from the new bonds formed between ADP and water, and between phosphate and water.

The net change in energy at Standard Temperature and Pressure of the decomposition of ATP into hydrated ADP and hydrated inorganic phosphate is -12 kcal / mole in vivo (inside of a living cell) and -7.3 kcal / mole in vitro (in laboratory conditions). This large release in energy makes the decomposition of ATP in water extremely exergonic, and hence useful as a means for chemically storing energy. Again, the energy is actually released as hydrolysis of the phosphate-phosphate bonds is carried out.

This energy can be used by a variety of enzymes, motor proteins, and transport proteins to carry out the work of the cell. Also, the hydrolysis yields free inorganic Pi and ADP, which can be broken down further to another Pi and AMP.

Answer 2

Basically, one ATP (adenosine triphosphate) is made up of an adenine ring, a sugar, and three phosphates. You can picture the three phosphates (triphosphate group) as a coiled spring with lots of potential energy behind it. To release energy, one of these phosphates "pops" off of the triphosphate group. This releases lots of energy and turns the ATP into ADP (adenosine diphosphate). ADP is just a name for the ATP with two phosphates instead of three. During respiration, phosphates are put back onto the ATP so that they can continue to produce more energy.

Answer 3

The second one.

Answer 4

when Phosphate is removied, hence the P, there are three of them, and then one is taken away to make energy, this is then called ADP.

Answer 5

do your own homework fool, that's an easy one