Based on the components you provided regarding the light-dependent reactions and the Calvin Cycle in a chloroplast, you can answer the following questions about the light-dependent reactions:
- Where is water broken down? - Water is broken down in the thylakoid membranes during the light-dependent reactions. This process is called photolysis, where water is split to release oxygen, protons, and electrons.
The other questions, such as "Where is ATP used?" and "Where is glucose?" pertain more to the Calvin Cycle and not specifically the light-dependent reactions.
So, the best question that can be answered about the light-dependent reactions is: Where is water broken down?