Electron transport system 6 steps

Electron transport system 6 steps

*consists of the transmembrane proteins within the Cristae of the mitochondria

Step 1

The first protein of the chain accepts electrons from NADH. The second protein reacts to FDAH 2.

step 2

-Electrons move from the first protein to a slightly more electronegative carrier.

step 3

Carriers also operate as pumps and drive protons across membranes out of the matrix into the intermembrane space

step 4

Higher proton concentrations in the intermembrane and lower concentration in the matrix forms a gradient.

step 5

protons must re-enter the matrix through an enzyme called ATP synthase.

step 6

protein gradient provides energy needed for ATP synthase to catalyze the synthesis of ATP from ADP and phosphate group 28-30 ATP . oxygen is the last electron acceptor forming water.