A molecule enters a cell and creates pores in the inner mitochondrial membrane. How will ATP generation as a result of oxidative phosphorylation be affected? A.Increased, because the cell membrane is still complete and proton movement is increased.B.Increased, because ATP is required for cell function and this cell’s mitochondria will need to work harder.C.Decreased, because there is no available oxygen.D.Decreased, because the proton gradient will be dissipated.

6. Electron movement results in the establishment of a proton gradient across the inner mitochondrial membrane. The proton motive force then provides the energy for ATP formation. a. How are protons shifted from the matrix to the intramembrane space? b. How is the proton gradient harnessed for ATP formation? c. How does ATP reach the cellular compartment/s where biosynthesis is occurring?

Which of the following statements about the electron transport chain and ATP production in the mitochondria is false?Group of answer choicesAny drug that inhibits the ATP synthase will also inhibit the flow of electrons in the ETC.For oxidative phosphorylation to occur, it is essential to have a membrane that is impermeable to protons except through specific proteins pores or protein complexesThe yield of ATP per mole of fuel depends on the type of molecule being catabolized.Some complexes of the respiratory chain pump protons into the matrix to create an electrochemical gradient.Exergonic electron transfer provides the energy for proton pumping.

The electron transport chain results in the generation of:A.a proton concentration gradient across the inner mitochondrial membrane, which drives phosphorylation of ADP.B.a proton concentration gradient across the inner mitochondrial membrane, which reduces NAD+ in a coupled reaction.C.an electron concentration gradient across the inner mitochondrial membrane, which drives phosphorylation of ADP.D.an electron concentration gradient across the inner mitochondrial membrane, which drives oxidation of NADH in a coupled reaction.Submit

Which statement about oxidative phosphorylation is NOT true?Group of answer choicesIt generates ATP using energy provided by the respiratory electron transfer chain.It requires aerobic conditions.It takes place in the cell's cytosol.It requires a proton motive force.It is powered by NADH and FADH2 produced by the tricarboxylic acid (TCA) cycle. PreviousNext

Which of the following events could directly increase the pH of the mitochondrial matrix?A.Permeabilization of the inner mitochondrial membraneB.Increased electron transport chain activityC.Increased ATP synthase activityD.Inhibition of the citric acid cycle