The Citric Acid Cycle In eukaryotic cells, the pyruvate molecules produced at the end of…

You have read that nearly all of the energy used by living things comes to them…

A living cell cannot store significant amounts of free energy. Excess free energy would result…

The removal of an electron from a molecule, oxidizing it, results in a decrease in…

Energy production within a cell involves many coordinated chemical pathways. Most of these pathways are…

Molecules can regulate enzyme function in many ways. The major question remains, however: What are…

A substance that helps a chemical reaction to occur is called a catalyst, and the…

After learning that chemical reactions release energy when energy-storing bonds are broken, an important next…

When an object is in motion, there is energy associated with that object. Think of…

Energy Thermodynamics refers to the study of energy and energy transfer involving physical matter. The…