from The American Heritage® Dictionary of the English Language, 4th Edition
- n. An ester of phosphoric acid containing two phosphate groups.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. any salt or ester containing two phosphate groups
- n. any salt or ester of diphosphoric acid; pyrophosphate
from The Century Dictionary and Cyclopedia
- n. In chem., a compound containing two combining units of the radical of phosphoric acid.
Sorry, no etymologies found.
ATP (adenosine triphosphate) and ADP (adenosine diphosphate), the main energy carriers in living cells, and he determined the structure of vitamin B12 (cf. Section 3.5) and of FAD
ATP is created from adenine diphosphate using the energy released during glucose metabolism.
ADP adenosine diphosphate is converted to ATP in the mitochondria.
Chemically, they function like batteries that pump charged particles across an inner membrane where the energy is captured by converting a molecule called adenosine diphosphate (ADP) into a higher-energy form called adenosine triphosphate (ATP).
Because of the asymmetry of the rotating axle, three subunits of the enzyme assume different forms and functions: a first form that hinds adenosine diphosphate (or ADP) and phosphate building blocks, a second form where these two molecules are chemically combined into a new ATP molecule, and a third form where the ATP that has been formed is released.
The removal of the terminal phosphate group from ATP produces adenosine diphosphate (ADP).
On removal of the outermost phosphate group, adenosine diphosphate (ADP) is formed while at the same time the energy released can be employed for other reactions.
Boyer and his co-workers have proposed, on the basis of biochemical data, a mechanism for how ATP is formed from adenosine diphosphate (ADP) and inorganic phosphate.
Equivalence for salt and base: 130 mg sulphate = 150 mg phosphate or diphosphate = 100 mg base 200 mg sulphate = 250 mg phosphate or diphosphate = 150 mg base
This activation leads to the removal by hydrolysis water action of a phosphate from the triphosphate GTP to leave the diphosphate GDP.