What type of molecule serves as the inorganic carbon reservoir for photosynthesis?

starch
ATP
carbon dioxide
glucose

How are the photosystems related to the Calvin cycle?

The photosystems drive CO2 and electrons into the Calvin cycle.
The photosystems are the reactions that use CO2 to build sugar molecules.
The photosystems transfer energy to the Calvin cycle in the form of ATP and NADPH.
The photosystems make the enzyme ATP synthase to drive the Calvin cycle.