activating its electrons to form ions
splitting into a phosphate ion and ADP
combining with other ATP molecules
passing electrons to NADH
2007-02-22 15:55:55 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Biology
splitting into a phosphate ion and ADP
Based on free energy movement in a system the terms exergonic and endergonic are used to determine the direction of this free energy. An exergonic reaction will release energy from the reaction, while an endergonic reaction will absorb free energy from its surroundings.
In order for an endergonic reaction to go to completion it needs an outside source of energy. In the cell this energy source comes from the chemical compound ATP. ATP helps the cell carry on 3 main types of work. Mechanical ( cell movement), chemical ( anabolism ), and transport ( pumping materials into and out of the cell ). ATP ( adenosine triphosphate) is constructed of a molecule of adenine attached to a molecule of ribose sugar which is attached to 3 phosphates.
ATP + H2O ---------------> ADP + P + G = -7.3 kcal / mol
This occurs in a test tube. In the human cell -10 / -12 kcal / mol are given off.
ATP transfers this energy to what ever it is reacting with. When the new chemical receives the P it is said to be phosporylated. Phosphorylation has occurred.
ATP is renewable. ADP + P ------------------> ATP G = + 7.3 kcal / mol (endergonic)
2007-02-22 16:26:22 · answer #1 · answered by ATP-Man 7 · 0⤊ 0⤋
The second one, splitting into a phosphate ion & ADP. Are we doing your homework?
2007-02-22 16:32:02 · answer #2 · answered by Miss Vida 5 · 0⤊ 0⤋
number two
and ADP gives energy by splitting into a pohospate ion and AMP
2007-02-22 22:56:40 · answer #3 · answered by Anonymous · 0⤊ 0⤋
Are you serious? all things release energy by breaking bonds so number 2. Pay attention in class.
2007-02-23 01:35:11 · answer #4 · answered by Lord Sesshomaru 4 · 0⤊ 0⤋