Question

in the chemical equation for photosynthesis, carbon dioxide and water are converted to glucose and oxygen.
6co₂ + 6h₂o → c₆h₁₂o₆ + 6o₂
which component could be added to complete this chemical equation?
light energy
atp and nadph
chemical energy
rubisco

Explanation:

Photosynthesis is a process that uses light energy. In the given chemical equation for photosynthesis ($6CO_2 + 6H_2O \to C_6H_{12}O_6+6O_2$), light energy is the essential component that drives the reaction. ATP and NADPH are products of the light - dependent reactions and are used in the Calvin cycle (light - independent reactions), but they are not the overarching energy source for the entire photosynthesis equation as presented. Chemical energy is a more general term and not specific to the energy input of photosynthesis. Rubisco is an enzyme involved in the Calvin cycle (fixing $CO_2$), not the energy input for the overall reaction.

Answer:

light energy