Question

The model shows the relationship between light-dependent reactions and the Calvin cycle within a cell.



Which question can be answered about light-dependent reactions?

A.
Where is ATP used?

B.
Where is CO2 used?

C.
Where is glucose formed?

D.
Where is water broken down?

Answer 1

D. Where is water broken down?

Light-dependent reactions (in the thylakoid membranes/lumen) split water (photolysis) to provide electrons and release O2 and H+; ATP is used and CO2 is fixed later in the Calvin cycle, and glucose is produced after the Calvin cycle.