Summary of the electron transport chain

The process by which oxygen is used during the product of most of the ATP from cellular (aerobic) respiration

The electron transport chain is a process that moves hydrogen ions across a membrane to produce large amounts of ATP.

The final step in transferring the energy of sunlight and glucose to the usable energy of ATP takes place during the electron transport chain. This step is a complex process, but in the end, the amount of ATP produced allows complex life to flourish on earth.

The last stage of cellular respiration is the electron transport chain.
The last phase of cellular respiration is the electron transport chain . The electron transport chain cranks out large amounts of ATP—in fact, it produces most of the ATP that a cell needs to drive all of its processes. In this stage, the electron carriers NADH and FADH2 that were produced in the Krebs cycle are ready to donate their energy to produce ATP.
As with glycolysis and the Krebs cycle, you don't need to memorize every detail of the electron transport chain. Rather, it is important that you learn the main components of the process and have a basic understanding of what goes on.

The electron transport chain takes place within the inner membrane of the mitochondria.
Recall that mitochondria have two membranes—an inner membrane and an outer membrane. The folds of the inner membrane, or cristae , create a very large surface area.
The electron transport chain takes place in the cristae. The large surface area of the cristae allows many substances to cross the membrane at one time.

Biochemistry, it deals with the chemical constitution, the breakdown and the synthesis of plant and animal products.