Lepidodendron, an extinct lycophyte tree. In botany, a tree is a perennial plant with an elongated stem, or trunk, supporting branches and leaves in most species. In some usages, the definition of a tree may be narrower, including only woody plants with secondary growth, plants that are usable as lumber or plants above a specified height. Trees are not a taxonomic group but include a variety of plant species that have independently evolved a woody trunk and branches as a way to tower above other plants to compete for sunlight. Trees ten
Conversion from ATP to ADP. Adenosine triphosphate (ATP) is the energy currency of life and it provides that energy for most biological processes by being converted to ADP (adenosine diphosphate). Since the basic reaction involves a water molecule, this reaction is commonly referred to as the hydrolysis of ATP.
Adenosine Triphosphate ATP: Adenosine 5'- (tetrahydrogen triphosphate). An adenine nucleotide containing three phosphate group s esterified to the sugar moiety. In addition to its crucial roles in metabolism adenosine triphosphate is a neurotransmitter.