During the light-dependent reactions, a high concentration of protons is established in a specific compartment to drive ATP synthesis. Name this internal space.
Q1. During the light-dependent reactions, a high concentration of protons is established in a specific compartment to drive ATP synthesis. Name this internal space.
Answer: Thylakoid lumen
Explanation: Protons accumulate in the thylakoid lumen during light reactions; the stroma is where they are pumped from, not stored.