Question

Adding protons to the lumen of the thylakoid is similar to:


A) discharging a battery


B) charging a battery

Answer 1

hydrogen ions (H+, protons) are released into the lumen of the thylakoid. Here H+ ions build up (chemiosmotic effect, similar to mitochondria) and when H+ passes through ATP synthase into the stroma of the chloroplast, ADP + Pi are converted into ATP - (photo)phosphorylation.

Answer 2

So B?