LIFE SCIENCE

Detailed explanation-1: -ATP is the primary energy-supplying molecule for living cells. ATP is comprised of a nucleotide, a five-carbon sugar, and three phosphate groups. The bonds that connect the phosphates (phosphoanhydride bonds) have high-energy content. The energy released from ATP hydrolysis into ADP + Pi performs cellular work.

Detailed explanation-2: -When one phosphate group is removed by breaking a phosphoanhydride bond in a process called hydrolysis, energy is released, and ATP is converted to adenosine diphosphate (ADP).

Detailed explanation-3: -The two bonds between the phosphates are equal high-energy bonds (phosphoanhydride bonds) that, when broken, release sufficient energy to power a variety of cellular reactions and processes.

Detailed explanation-4: -The hydrolysis of ATP breaks the bond between the two outer phosphate groups. This releases the outermost phosphate group along with the free energy that was stored in this bond to produce a molecule of adenosine diphosphate, often shortened to ADP.

Detailed explanation-5: -The phosphoanhydride bonds of ATP, or the bonds between phosphate molecules, are high energy. This is due to the close proximity of positively charged phosphate and negatively charged oxygen; these charges repel.