metabolism and bioenergetics

metabolism

overarching term for all the biochemical reactions involved in maintaining the dynamic state of the cell

intermediates or metabolites

molecules that are the products and substrates in these reactions are referred to as

Catabolism

the breakdown of molecules to produce energy; degradative reactions

Anabolism

the synthesis of molecules that consume energy; synthetic reaction

pathways

consecutive biochemical/metabolic reactions are called _____

production of energy

catabolic pathways lead to the ______

synthesis of biomolecules

anabolic pathways lead to the ________

Bioenergetics

quantitative study of the energy transfuctions

enthalpy

measure of the change in heat content of the reactant and products

entropy

a measure of the change in randomness or disorder of reactants and products

exergonic reaction

when free energy is negative. Spontaneous

energonic reaction

when free energy is positive. Nonspontaneous

ATP

it is the chemical link between catabolism and anabolism

ATP

it is the energy currency of the cell

2 electrons and 1 proton

both nad+ and nadp accept hpw many electrons and protons

FAD and FMN

serve as cryptochromes and photolyses