The process that uses membranes to couple redox reactions to ATP production is known as

The process that uses membranes to couple redox reactions to ATP production is known as Oxidative Phosphorylation.

Here are the steps involved in this process:

1. Electron Transport Chain: The high-energy electrons generated from the Krebs cycle are transferred to oxygen through a series of protein complexes in the inner mitochondrial membrane known as the electron transport chain. This process releases energy.

2. Proton Gradient: The energy released from the electron transport chain is used to pump protons (H+) across the inner mitochondrial membrane, from the matrix into the intermembrane space. This creates a proton gradient, with a higher concentration of protons in the intermembrane space than in the matrix.

3. ATP Synthesis: The protons in the intermembrane space flow back into the matrix through an enzyme called ATP synthase. This flow of protons provides the energy needed for ATP synthase to convert ADP into ATP, the cell's usable form of energy.

4. Oxygen's Role: Oxygen acts as the final electron acceptor in the electron transport chain. It combines with electrons and protons to form water, a process that is essential for the continuation of the electron transport chain.

So, in summary, oxidative phosphorylation is the process that uses membranes (specifically the inner mitochondrial membrane) to couple redox reactions (in the electron transport chain) to ATP production (via ATP synthase).