Examlex
Positron-emission tomography is a method for analyzing biochemical activity in the brain,using injections of a glucose-like substance containing a radioactive element.
Free Energy Change
A measure in thermodynamics indicating the amount of energy in a system that is available for work during a chemical reaction.
Endergonic Reactions
Chemical reactions that absorb energy from their surroundings, typically requiring an input of energy to proceed.
Exergonic Reaction
A chemical reaction that releases energy through the process of work, typically characterized by a negative Gibbs free energy.
Activation Energy
The minimum quantity of energy that the reacting species must possess in order to undergo a specified reaction.
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