5.6 The Machinery for ATP Formation скачать в хорошем качестве

5.6 The Machinery for ATP Formation

ATP Formation in Mitochondria ATP synthase, a key enzyme in mitochondria, uses the proton gradient created by electron transport to synthesize ATP. It has two parts: F₁ Unit: The catalytic head inside the matrix, where ATP is synthesized. It contains three active sites that change shape to bind ADP and Pi, form ATP, and release it. F₀ Unit: Embedded in the inner membrane, it forms a proton channel. Protons flowing through F₀ cause the rotation of the F₁ unit, driving ATP synthesis. This process, called rotational catalysis, converts the energy from the proton gradient into chemical energy (ATP).