Like many other members of the B-vitamin family, Niacin is well-known for its role in energy metabolism (breaking down substances in the body to yield energy). Actually, niacin plays a part in the energy metabolism of all cells in the body. Another benefit of water-soluble vitamin is its versatility.
Adenosine triphosphate (ATP) , the energy currency or coin of the cell pictured in Figfures 1 and 2, transfers energy from chemical bonds to endergonic (energy absorbing) reactions within the cell.nergy is stored in the covalent bonds between phosphates, with the greatest amount of energy (approximately 7 kcal/mole) in the bond between the second and third phosphate groups. This covalent bond is known as a pyrophosphate bond.
1 The bond energy, Eb, which is the energy stored in the various covalent bonds making up the molecule. 2  Kinetic energy of translation, Et, which is the kinetic energy, mv2 that a molecule possesses by virtue of its mass, m, and velocity, v. 3  Vibrational energy, Ev.ntroduction. Molecules have energy, and when they react, changes in the total energy of the reacting molecules take place. Some of this energy is available to do work, either directly or indirectly. 1  Fossil fuels (coal, petroleum) can be burnt, generating heat, which in turn, provides steam used to generate electricity.