AP BIOLOGY

Detailed explanation-1: -The inner membrane is where oxidative phosphorylation takes place in a suite of membrane protein complexes that create the electrochemical gradient across the inner membrane, or use it for ATP synthesis.

Detailed explanation-2: -What is oxidative phosphorylation? Oxidative phosphorylation is the process where energy is harnessed through a series of protein complexes embedded in the inner-membrane of mitochondria (called the electron transport chain and ATP synthase) to create ATP.

Detailed explanation-3: -In the mitochondria’s inner membrane oxidative phosphorylation takes place. The intermembrane gap and the mitochondrial matrix are where the proton gradient is produced.

Detailed explanation-4: -The inner membrane forms numerous folds (cristae), which extend into the interior (or matrix) of the organelle. Each of these components plays distinct functional roles, with the matrix and inner membrane representing the major working compartments of mitochondria.

Detailed explanation-5: -Cristae membranes are studded on the matrix side with small round protein complexes known as F1 particles, the site of proton-gradient driven ATP synthesis. Cristae affect overall chemiosmotic function of mitochondria.