The light reaction makes two substances needed by the dark reaction: ATP and NAPH. As long as these two substances are available the dark reaction can continue, even in the absence of light. However when they run out more light is needed to replace them.
Photosynthesis.
photosynthesis
Sounds like you are referring to photosynthesis.
Photosynthesis is a chemical reaction that converts carbon dioxide and water into glucose and oxygen using sunlight as an energy source. It is a complex process that occurs in plants, algae, and some bacteria.
Carbon dioxide + Water = Gluose + Oxygen :D
photosynthesis
Photolysis of water and formation of energy rich componds
what chemical change happens to a green plant
Consider the reaction that occur during photosynthesis and respiraton and predict which elements are found in sugar
Photosynthesis occurs in the chloroplasts, where sunlight is converted into chemical energy in the form of glucose. This process is essential for plants to produce their own food and release oxygen into the atmosphere.
The dark reaction as it pertains to photosynthesis occurs when the plant, in the absence of sunlight, continue to supply energy. The dark side of photosynthesis relies upon the stored starches to fuel the energy cycles.
A spontaneous reaction.