...the key of A minor. 5 n-count The key on a map or diagram or in a technical book is a list of the symbols or abbreviations used and their meanings. You will find a key at the front of the book. 6 adj The key person or thing in a group is the most important one.
ATP (Adenosine triphosphate). 1  It is the major energy currency of the cell, providing the energy for most of the energy-consuming activities of the cell. 2  It is one of the monomers used in the synthesis of RNA and, after conversion to deoxyATP (dATP), DNA.3  It regulates many biochemical pathways. It is the major energy currency of the cell, providing the energy for most of the energy-consuming activities of the cell. 2  It is one of the monomers used in the synthesis of RNA and, after conversion to deoxyATP (dATP), DNA. 3  It regulates many biochemical pathways.
Adenosine triphosphate (ATP) is a multifunctional nucleotide used in cells as a coenzyme. It is often called the molecular unit of currency of energy transfer. ATP transports chemical energy within cells for metabolism.elow are a few ways in which ATP is used. When muscles contract in any organism, it means muscle fibers are generating tension with the help of motor neurons. ATP is the source of energy that allows this to take place.