TLS Online TPP Program

#Question id: 2556


Which of the following processes generates a proton-motive force in mitochondria?

#Unit 2. Cellular Organization
  1. the flow of protons through ATP synthase down their concentration gradient

  2. the reduction of NAD+ by the first electron carrier in the electron transport chain

  3. lowering of pH in the mitochondrial matrix

  4. pumping of hydrogen ions from the mitochondrial matrix across the inner membrane and into the intermembrane space