Usualy nigh lights or cretin street lights :)
It uses ATP and NADPH from the light-dependent reactions so that it can produce high-energy sugars
This is incorrect. The Calvin cycle is actually a series of light-independent reactions that take place in the stroma of the chloroplasts. It uses the products of the light-dependent reactions to convert carbon dioxide into glucose.
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Light-dependent reactions are those that require light to proceed.
The two stages of photosynthesis are the light dependent and the light independent. During the light reactions, light is converted into energy by a process of transferring electrons to and from a special chemical called NADP. In the light independent stage, called the Calvin Cycle, which uses that energy to change carbon dioxide into sugars for the cell's use.
The light dependent reaction, of course.
In light dependent reactions ATP and NADPH are produced
Circuit
The products of light-dependent reactions are used in light-independent reactions.
The light-dependent reactions will not occur.
The light-dependent reaction of photosynthesis requires light energy, water, and ADP + Pi to produce oxygen, ATP, and NADPH. The light-independent reaction, or the Calvin Cycle, does not directly require light but uses the products of the light-dependent reaction (ATP and NADPH) along with carbon dioxide to produce glucose.
The Calvin cycle, which uses the NADPH and ATP generated by the light-dependent reactions to drive the conversion of carbon dioxide to glucose.