Chapter 9 Energy transformation and metabolism Flashcards
Potential energy
Energy stored in food in the form of chemical bonds.
Kinetic energy
The energy of motion
Chemical bonds
A bond between atoms, ions, or molecules that holds chemical compounds together.
Energy Transfer
The movement or conversion of energy through breaking and reforming of bonds.
Metabolism
The sum of all chemical reactions in the body that sustain life.
Thermodynamics
The relationships between forms of energy.
Energy balance
The relationship between energy in from food and energy out from metabolism and movement
Adenosine Triphosphate (ATP)
The energy currency of cells.
Hepatocytes
Liver cells
Myocytes
Muscle cells
Adenosine
A molecule found throughout the body that aids in cellular energy transfer by forming other molecules ATP and ADP.
Phosphate
A chemical building block of ATP as well as other cell membranes and DNA.
Covalent bonds
A chemical bond with shared electron pairs between atoms.
Adenosine Diphosphate ADP
The chemical byproduct after breaking one adenosine phosphate bond from ATP.
Energy system
A biological system that converts stored energy into forms we can use.