The reducing power is provided by nadph, which acquired its cargo of electrons in the light reactions To convert co2 to carbohydrate, the calvin cycle also requires chemical energy in the form of atp, which is also generated by the light reactions. The two energy compounds that transfer to the calvin cycle are atp and nadph Atp provides the energy required for the cycle's reactions, while nadph donates electrons necessary for converting carbon compounds into glucose. The two energy sources for the calvin cycle are atp (adenosine triphosphate) and nadph (nicotinamide adenine dinucleotide phosphate). The cycle utilizes energy from adenosine triphosphate (atp) and reduced nicotinamide adenine dinucleotide phosphate (nadph), which are produced using light energy absorbed by chlorophyll.
Gtp is a close relative of atp, and the transfer of its terminal phosphate group to adp produces one atp molecule in each cycle
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