Report Abuse. The Circulatory System is responsible for transporting materials throughout the entire body. It transports nutrients, water, and oxygen to your billions of body cells and carries away wastes such as carbon dioxide that body cells produce.eport Abuse. The Circulatory System is responsible for transporting materials throughout the entire body. It transports nutrients, water, and oxygen to your billions of body cells and carries away wastes such as carbon dioxide that body cells produce.
Energy is always required to break bonds and always is released when bonds are formed, even with ATP, but the part that is omitted is that more molecules of water are bound and ordered after the ATP hydrolysis than before and so more ordering plus many more highly energetic hydrogen bonds formed than broken equals a large overall release of energy for the overall process.
- ATP is composed of an adenosine group attached to 3 phosphate groups. Energy is stored (chemical potential energy) in the bond between the 2nd & 3rd phosphate groups. - Breaking this bond releases energy & reforming this bond stores energy. - ATP is the only molecule that can directly transfer chemical energy into kinetic energy (i.e. muscle fibre contraction.