BIOENERGETICS and OXIDATIVE PHOSPHORYLATION I Flashcards
Describes the transfer and utilization of energy in biologic systems
BIOENERGETICS
Uses few basic ideas from the field of thermodynamics
FREE ENERGY
Factors of free energy
Enthalpy
Entropy
measure of the change in heat content of the reactants and products
enthalpy
measure of the change in randomness/disorder of reactants and products.
entropy
Reactions or processes that have a large positive Δ𝐺 (change in free energy) such as moving ions against the concentration gradient across a cell membrane are made possible by
Exogernic hydrolysis
Called as a “high-energy phosphate compound”
Adenosine Triphosphate
series of four protein complexes
Electron transport chain
an electrochemical gradient that leads to the creation of ATP in a complete system
oxidative phosphorylation
vital metabolic process that occurs in the mitochondria
oxidative phosphorylation
making it freely permeable to most ions
and small molecules
Outer membrane
specialized structure impermeable to most
small ions
inner membrane
- Unusually rich in protein
- Highly convoluted
inner mitochondrial membrane
convolutions that serves to greatly increase
the surface area of the inner membrane
cristae
Protein rich gel-like solution in the interior of mitochondria
matrix of mitochondria
