Question

or Questions 27 to 34, refer to the figure below (the Chemiosomotic Model of ATP synthesis) 27 According to the chemiosmotic model, proton movenent through the channel of the 28. The ATP svnthesis step harnesses (s powered by') the energy releasedfram dffision. ATP synthase is a diffusional process. True or False? True or False? 29. According to the chemiosmotic model, the ATP synthase is a active process movement of protans through the channel of an True or False? 30. Oxygen is at the end of the electron transport chain because it is a weaker oxidizer than FMN. True or False? and pnies thee to Co0 protein During th punped ourof are punped out of the 31 If, in addition to proton pumping that occurs, protons are also able to diffuse through the lipid bilayer (simple diffusion) of the inner membrane, ATP production would increase True or False? found in nature. If by way of a proton ionophore, protons start leaking through the lipid bilayer of the mitochondria's inner membrane, electrons transport to oxygen should speed up. True or False? 32. lanophores are molecules that cause the ions to leak through membranes. Some are toxins (Hint: What would you do if you were in a boat that is sinking because af a hole that can't be plugged up?) A proton ionophore that affects the mitochondria's inner membrane as described in question 32 should inhibit the mitochondria's production of ATP. 33. True or False?

Answer 1

27. TRUE

Protons will diffuse from a area of high concentration to a area of low concentration.

28. TRUE

ATP synthase uses the energy of proton diffusion to make ATP from ADP and Pi

29. FALSE

Energy is transferred from electron transport chain to ATP synthase by movement of protons across the membrane by chemiosmosis process.

30. TRUE