Electron Transport Chain 3 of 6 is a series of proteins resp

Electron Transport Chain (3 of 6) is a series of proteins responsible for moving high energy electrons from electron carriers (NADH, FADH2 An electron transport chain that are NADPH) to a final electron acceptor. higher redox potential (0.73V and finally to oxygen which has the redox potential (0.85V). This exergonic process is coupled to the endergonic process of pumping protons against their concentration gradient, from low concentration to high concentration. The proton gradient is required for the production of ATP H+ H+ H+ H+ H+ H+ H+ H+ H+ H+ H+ Which of the following are true? Select all that apply. A. Protons flow through the ATP synthase from high concentration to low concentration. B. Protons flow through the ATP synthase from low concentration to high concentration. C. ATP is made in the bottom compartment. D. ATP is made in the top compartment. E. The top compartment is the mitochondrial matrix F. The top compartment is the mitochondrial intermembrane space. You may select zero, one, or many answers

Solution

Question 3 of 6:

A) Protons flow through ATP synthase from high concentration to low concentration.... chemiosmotic theory of ATP generation.

D) ATP is made in upper compartment.... FACT BASED NO EXPLANATION

E) The top compartment is mitochondrial matrix..... Proton gradient builds in mitochondrial intermembrane space. and ATP is generated in matrix

Question 4 of 6

b)Electron flow will stop, and ATP production will continue until proton gradient is eliminated..... because cyanide blocks cytochrome c complex and doesnt block ATP synthase, blockage of ATP synthesis is an effect of ETC blockade. hence ATP synthase will continue to work until gradient ends.

D) NADH will accumilate and citric acid cycle would slow down..... because electrons wont be transferred from NADH and FADH2 in ETC.

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