Question

What is the role of ATP? Name the process, and the steps in the

process, that generates ATP in aerobic organisms.

Answer 1

ATP ( Adenosine Triphosphate ) is the energy currency of living cells. Its role is to store and release energy during cellular processes.

The process that generates ATP in aerobic organisms is cellular respiration, which occurs in three steps:

Step 1 : Glycolysis

Step 1 : GlycolysisStep 2 : The Krebs cycle

Step 1 : GlycolysisStep 2 : The Krebs cycleStep 3 : Electron transport phosphorylation.

In each step, chemical energy from nutrients is converted into a form that the cell can use, such as ATP. During glycolysis, glucose molecules are broken down into pyruvate molecules, which are then further processed in the Krebs cycle. During the Krebs cycle, chemical energy from the breakdown of glucose is used to create molecules of ATP. In the final step, electron transport phosphorylation, energy from the oxidation of NADH and FADH2 is used to synthesize ATP molecules.