AP BIOLOGY

Detailed explanation-1: –The electron transport system takes place in the cristae present in the inner membrane of the mitochondria. Cristae are the infoldings of the inner membrane of the mitochondria and it aids in the cellular respiration. It contains a number of cytochromes and enzyme ATP synthase.

Detailed explanation-2: -Electron transport chain (ETC) occurs in the inner mitochondrial membrane, where the OXPHOS takes place through the action of ATP synthase, [37].

Detailed explanation-3: -The ETC requires oxygen, which means that it is an aerobic process. It takes place in the folds of the inner membrane of the mitochondria. These folds are called cristae.

Detailed explanation-4: -The ETC is a collection of proteins bound to the inner mitochondrial membrane and organic molecules, which electrons pass through in a series of redox reactions, and release energy.

Detailed explanation-5: -The electron transport chain activity takes place in the inner membrane and the space between the inner and outer membrane, called the intermembrane space.