Describe how ATP is built in the mitochondrial membrane?

In the electron transport chain protons are pumped in the intermembranous space, an electrochemical gradient appears. Protons flow back to the mitochondrial matrix through the ATP-synthase providing the energy necessary for ATP synthesis.

the dna molecules have a negative charge because of the phosphate groups in their sugar-phosphate backbone, so they start moving through the matrix of the gel towards the positive pole. power is turned on and dna fragments migrate through gel (towards the positive electrode).

explanation:

the answer would be   10%