ATP (adenosine triphosphate) has been called the energy currency of the cell. Briefly outline the cycle by which energy is stored in and released from ATP. Explain the importance of the phosphate bond to this series of processes. Be prepared to discuss how ATP is critically important to cellular chemical processes.
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1) (David)
ATP as the energy currency of the cell
ATP (adenosine triphosphate) has been called the energy currency of the cell. Briefly outline the cycle by which energy is stored in and released from ATP. Explain the importance of the phosphate bond to this series of processes. Be prepared to discuss how ATP is critically important to cellular chemical processes.
The phosphate bond is very important in this process with ATP because the positively charged phosphate and the negatively charged oxygen stabilizes the product (ADP+P). When bonds are broken the increased stability is due to the resonance to ensure structure. ADP has the same bonds structure as a ATP but with one less phosphate group. This is also the same three reasons ATP bonds are high energy apply to ADP’s bonds. The soring of energy is created when three phosphate molecules are bonded. When energy is released it happens when the phosphate goes from three to two molecules which means the bond has been broken and energy released. The formula is commonly writing ADP + Pi. When energy is released
2) Rodney
Adenosine triphosphate (ATP) is the process of which energy is taken from food, stored, and then released at a later time. Adenosine consists of an organic molecule called adenosine plus a tail of three phosphate groups. Each phosphate group is negatively charged and they repel each other. The crowding of negative charges in the triphosphate tail contributes to the potential energy of ATP. Energy is released of the phosphate at the tip of the triphosphate tail that makes energy available to working cells. What remains is ADP, adenosine diphosphate (two phosphate groups instead of three). ATP energizes other molecules in cells by transferring phosphate groups to those molecules. When a target molecule accepts the third phosphate group, it becomes energized and can then perform work in the cell.
As a renewable resource. ATP can be restored by adding a phosphate group back to ADP. This requires energy, and that’s where food comes into place. The chemical energy that cellular respiration harvests from sugars and other organic fuels is put to work regenerating a cell’s supply of ATP.
References
Simon, E. J., Dickey, J. L., Reece, J. B., Hogan, K. A. (1–2015). Campbell Essential Biology with Physiology, 5th Edition. [South University]. Retrieved from https://digitalbookshelf.southuniversity.edu/#/books/1323125574/
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