Based on comparison of oxidative phosphorylation to photophosphoylation,which of the following is TRUE?
A)Photophosphoylation cannot be uncoupled by an ionophore like can be done with oxidative phosphorylation.
B)The formation of a proton gradient is required for adequate function of both photo- and oxidative phosphorylation.
C)Although sequence similarities exist between the ATP synthases from each process,little structural similarity is observed.
D)Photophosphorylation is not dependent on spontaneous electron flow whereas oxidative phosphorylation requires that electron flow be spontaneous.
E)None of the above is true.

Question

Quizplus · Accepted Answer

Both oxidative phosphorylation and photophosphorylation require the formation of a proton gradient for adequate function. However, choice A is incorrect because ionophores can also be used to uncouple photophosphorylation. Choice C is incorrect because there is significant structural similarity between the ATP synthases from each process. Choice D is incorrect because spontaneous electron flow is necessary for both photophosphorylation and oxidative phosphorylation.

Based on Comparison of Oxidative Phosphorylation to Photophosphoylation,which of the Following