Related words. 1  key adjective. 2  key verb. 3  key in phrasal verb. 4  key to phrasal verb. 5  Alt key noun. 6  hot key noun. 7  low-key adjective. 8  off-key adjective, adverb. 9  tab key noun. 10  Allen key noun. 11  arrow key noun. 12  enter key noun. 13  key card noun. 14  key ring noun. 15  pass key noun. 16  pound key noun. 17  shift key noun. 18  star key noun. 19  command key noun. 20  control key noun.
Lesson Summary. ATP, or adenosine triphosphate, is a high-energy molecule that is found floating in the cytoplasm of every cell. It's a three-part molecule that has a phosphate group.
Role of extracellular ATP in plants. ATP is a ubiquitous compound in all living cells; it not only provides the energy to drive many biochemical reactions, but also functions in signal transduction as a substrate for kinases, adenylatecyclases, etc.ole of extracellular ATP in plants. ATP is a ubiquitous compound in all living cells; it not only provides the energy to drive many biochemical reactions, but also functions in signal transduction as a substrate for kinases, adenylatecyclases, etc.