Metabolism, Oxidation, and Reduction Flashcards
The collection of all the biochemical reactions that occur in an organism
Metabolism
Metabolic reactions are often accompanied by the ____ of electrons between reactants
transfer
Where is energy stored?
-in chemical bonds (as potential energy)
-in electrons
If electrons are rearranged or released, then potential energy can be____
reduced
a rapid chemical combination with oxygen
combustion
Organic + O2–> CO2 + H2O + Energy
Combustion
Combustion releases____
energy
Combustion is a _______ reaction
exergonic
Reaction with O2 is a form of ____
oxidation
Oxidation-Reduction Reactions:
energy is stored in _____ bonds
covalent
When covalent bonds are broken or rearranged, electrons can be transferred between reactants.
These electron-transfer reactions are ______
Oxidation-Reduction Reactions
or
Redox Reactions
Oxidation-Reduction Reactions:
an electron is lost
oxidation
Oxidation-Reduction Reactions:
an electron is gained
reduction
Oxidation-Reduction Reactions:
Addition of a negatively charged electron _______ the overall charge of a molecule
reduces
Oxidation-Reduction Reactions:
A(reduces) + B (oxidizes) <—> A(oxidized) +B(reduced)
