In light-dependent reactions, hydrogen ions are transported into the thylakoid membrane. What drives the movement of these ions?
A) passive diffusion of ions from high to low concentration
B) passive diffusion of ions from low to high concentration
C) active transport of ions driven by the hydrolysis of water into oxygen
D) active transport of ions driven by energy from the electron transport chain
E) active transport through the enzyme ATP synthase

Question

Quizplus · Accepted Answer

The movement of hydrogen ions into the thylakoid membrane during the light-dependent reactions is driven by active transport, which is powered by energy from the electron transport chain. This process is essential for the generation of a proton gradient used in ATP synthesis.

In Light-Dependent Reactions, Hydrogen Ions Are Transported into the Thylakoid