Question

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.

Answer 1

The correct answer for 1 is carbon dioxide

That's because carbon dioxide is inorganic, which basically means it's not a compound used in creation of life, it's just inorganic matter.

The correct answer for 2 is The photosystems transfer energy to the Calvin cycle in the form of ATP and NADPH.

These are then processed to produce even more ATP which creates energy for the organism.