<u>ATP, which stands for Adenosine triphosphate, is an energy-carrying molecule which has chemical energy stored in its bonds with phosphate groups.</u> This molecule consists of adenosine (a sugar) and three phosphate groups (triphosphate)
This energy is obtained during cellular respiration from the breakdown of nutrients, and releases it to fuel cellular processes.
So, when the cell needs energy, <u>ATP loses a phosphate group, releasing the energy stored in that bond,</u> thus driving the metabolic processes of life. This energy is released because of the cleavage of high energy phosphate bond in ATP converting it into ADP (now it has two phosphates)
Everything happen to Kim could be treatment.. There is no reason to die. She needs to be strong to avoid the negative things that impact her thinking..Try to be happy, exercise and have good friend... If she keep doing the nice things , the good thing will come to her. I hope this partial ideas will help her to overcome this difficult time.