A chemical compound that is the most immediate chemical source of energy for a cell.
The coenzyme that acts as an intermediate between energy-yielding (catabolic) metabolism (the oxidation of metabolic fuels) and energy expenditure as physical work and in synthetic (anabolic) reactions.
Intracellular carrier of chemical energy produced by the body for muscular work.
Stored chemical energy that links the energy-yielding and energy-requiring functions within all cells.
The major carrier of chemical energy in the cells of all living things on this planet. A ribonucleoside 5′ -triphosphate functioning as a phosphate-group donor in the energy cycle of the cell. ATP contains three phosphate/oxygen molecules linked together. When a phosphate-phosphate bond in ATP is broken (hydrolyzed), energy that the cell can use to carry out its functions is produced. Thus, ATP serves as the universal medium of biological energy storage and exchange, in living cells.
A high-energy compound in metabolic pathways and the electron transport system is needed for cellular activity.
A chemical which occurs in all cells, but mainly in muscle, where it forms the energy reserve.
The energy-rich compound that serves as the energy coinage of the cell.
Adenosine triphosphate (ATP) is a high-energy phosphate compound required by the majority of energy-requiring processes in the body. The energy produced in the splitting of the high-energy phosphate bond of ATP is approximately 7300 cal/mol. That energy can be used to drive endothermic (energy-requiring) reactions in the body. Processes that require ATP for functioning include muscular contraction, active transport, and many biosynthetic reactions of the body.
Compound consisting of adenosine, ribose, and three phosphate (phosphorous-containing) groups and involved in the storage and transfer of energy in cells, in muscle.
A molecular substance that supplies the energy for muscle fiber contraction; energy is released when ATP is hydrolyzed to adenosine diphosphate.
ATP is a molecule that serves as the principal immediate source of usable energy for the metabolism of cells. ATP is composed of adenine, ribose, and three phosphate units. The conversion of ATP to adenosine diphosphate (ADP) provides the fuel to drive nerve signal transmission, muscle movement, protein synthesis, and cell division.
A compound comprising the chemical substances adenine, ribose and phosphates. The chemical bonds of the phosphates contain energy needed for cell metabolism that occurs when muscle cells contract. This energy is made available when ATP breaks up to form other chemical groupings — adenosine diphosphate (ADP) and adenosine monophosphate (AMP). The energy needed for recombining AMP and ADP to form ATP is produced by the breakdown of carbohydrates or other constituencies of food.
A compound of adenosine containing three phosphoric acid groups. Its chemical formula is C10H16N5O13P3. ATP is present in all cells; it is formed when energy is released from food molecules during cell respiration. Cells contain enzymes to split (“hydrolyze”) ATP into ADP, phosphate, and energy, which is then available for cellular functions such as mitosis.
The high-energy phosphate molecule used to make cellular energy. Muscle cells use ATP to fuel contraction.
A compound possessing high-energy is frequently utilized in a multitude of biological operations, such as the activation of muscle fibers, the production of complex molecules, and the facilitation of substance transfer.
The widely accepted form of energy used by almost all body cells.