EVERYDAY SCIENCE

Detailed explanation-1: -The electron transport chain is a series of four protein complexes that couple redox reactions, creating an electrochemical gradient that leads to the creation of ATP in a complete system named oxidative phosphorylation. It occurs in mitochondria in both cellular respiration and photosynthesis.

Detailed explanation-2: -The electron transport chain is a series of proteins and organic molecules found in the inner membrane of the mitochondria.

Detailed explanation-3: -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-4: -The electron transport chain activity takes place in the inner membrane and the space between the inner and outer membrane, called the intermembrane space.

Detailed explanation-5: -The electron transport chains are on the inner membrane of the mitochondrion. As the high-energy electrons are transported along the chains, some of their energy is captured. This energy is used to pump hydrogen ions(from NADH and FADH2) across the inner membrane, from the matrix into the intermembrane space.