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Tuesday, December 24, 2013


Part A

The excitation of chlorophyll by light energy initiates a chain of events that leads to ATP production.
Part B

The chemiosmotic hypothesis states that the flow of electrons through an electron transport chain generates a proton gradient that leads to the synthesis of ATP.
Part C

A proton gradient across chloroplast and mitochondrial membranes drives ATP synthesis by the enzyme ATP synthase.
Part D

The channels formed by ATP synthase are specific for protons.
Part E

The region of ATP synthase that catalyzes ATP production protrudes out of, but does not span, the chloroplast membrane; the region that spans the membrane is an ion channel through which protons can pass.
Part F

This statement is true; although the proton gradient is present, ADP and inorganic phosphate are required to make ATP and were not added to the reaction.

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