biology help!!?

Question

i can't figure out some of these questions..so if u guys know the answers..reply as soon as possible..thanks!!

1. how does the structure of a chloroplast enable it to build up a concentration gradient of protons?

2. what are the energy-carrying end products of the light harvesting reactions?

3. explain the function of accessory pigments.

THANKS ALOT!!!

Answer 1

1 the light-harvesting system in chloroplasts functions like a funnel.the light-driven transport of electrons during photosynthesis creates a proton gradient across the thylakoid membrane.this proton gradient drives the formation of ATP. 2 ATP to ADP 3 they capture light energy and transfer it to chlorophyll