Teste (2) : concours ISPITS

18:32 Question 18 The correct answer is: B and C Explanation: The respiratory chain, located in the inner mitochondrial membrane, actively pumps protons (H⁺) from the matrix into the inter-membrane space. This creates a concentration gradient with an increasing concentration of protons in the inter-membrane space and a decreasing concentration of protons in the matrix. This electrochemical gradient is essential for the production of ATP via ATP synthase.