Definition and synonyms of key from the online English dictionary from Macmillan Publishers Limited.
Cellular respiration is the set of metabolic reactions and processes that take place in the cells of organisms to convert biochemical energy from nutrients into adenosine triphosphate (ATP), and then release waste products.his potential is then used to drive ATP synthase and produce ATP from ADP and a phosphate group. Biology textbooks often state that 38 ATP molecules can be made per oxidised glucose molecule during cellular respiration (2 from glycolysis, 2 from the Krebs cycle, and about 34 from the electron transport system).
It does this by making a bond between ADP and the phosphate. Energy is required to make bonds, and it is released when the bond is broken. Respiration uses the glucose to provide the energy to make this bond, producing ATP. This ATP is then broken down to provide energy to do work, like contraction of muscles. I know this doesn't seem instant, but it does happen pretty quickly. 5 people found this useful.