Question

une i, tytothrome DL cytochrome bHiron-sulfur protein (Rieske center) OD.FMN, cytochrome b, cytochrome a, Cu OE. NAD, FMN, cytochrome c1, CoQ QUESTION 18 Which of the following energy sources drives the phosphate carrier that transports Pl into the mitochondria from the cytosol? A. ATP hydrolysis OB. Simultaneous transport of H+ into mitochondion C. Simultaneous transport of ADP into mitochondrion D. Simultaneous transport of H+ out of the mitochondrion E. Simultaneous transport of ATP out of the mitochondrion Click Save and Submit to save and submit. Click Save All Answers to save all answers. MacBook

Answer 1

Pi is transported into the mitochondrial matrix by Pi/H+ symporter, which transports H+ and Pi to the mitochondrial matrix, the concentration of H+ is higher in the intermembrane space ( during electron transport H+ is pumped into the intermembrane space from the matrix ) the energy released during the transport of H+ down the concentration gradient is used to transport Pi into mitochodnria.

so the answer is B) simultanoeus transport of H+ into mitochondrion.