Why are the components of the electron transport chain embedded in the inner mitochondrial membrane rather than floating freely in the cytoplasm of mitochondrial matrix?

Question

Quizplus · Accepted Answer

The electron transport chain components are embedded in the inner mitochondrial membrane to generate and maintain the proton gradient essential for ATP production. This gradient is required to drive the conversion of ADP to ATP, and the movement of the electron transport chain components across the membrane is necessary to maintain the gradient. If the components were free-floating in the cytoplasm of the mitochondrial matrix, it would be difficult to establish and maintain this gradient.

Why Are the Components of the Electron Transport Chain Embedded