The correct answer is water as the water molecules are produced during photosynthesis.
Co2 produces the starch from sugar. ATP and NADPH are also used to convert sugar molecules during the Calvin cycle.
Carbon enters the Calvin cycle as CO2 and leaves as sugar. ATP is the power source, even as NADPH is the decreasing agent that provides high-power electrons to shape sugar. The Calvin cycle absolutely produces a three-carbon sugar glyceraldehyde 3-phosphate (G3P).
What is the Calvin cycle?
The Calvin cycle is a technique that plant life and algae use to show carbon dioxide from the air into sugar, the meals autotrophs want to grow. Every dwelling element on Earth relies upon the Calvin cycle. Plants rely on the Calvin cycle for power and meals.
Thus it's clear that it has no water needed.
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