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What are the 3 reactants of the Calvin cycle?
You’ve learned that the first, light-dependent stage of photosynthesis uses two of the three reactants, water and light, and produces one of the products, oxygen gas (a waste product of this process). All three necessary conditions are required – chlorophyll pigments, the chloroplast “theater,” and enzyme catalysts.
What do the light reactions provide to the Calvin cycle?
The light reactions provide ATP and NADPH to the carbon fixation step of the Calvin cycle, and the cycle provides water and electrons to the light reactions.
Why is the Calvin cycle dependent on the light dependent reaction quizlet?
The light-dependent reactions transform the energy in sunlight to chemical energy in the form of electrons with high potential energy. These electrons are used to produce ATP and the electron carrier NADPH. Then the reactions of the Calvin cycle use the ATP and NADPH to reduce: carbon dioxide to carbohydrate.
Why must the light reaction occur before the Calvin cycle?
The light dependent reaction of photosynthesis provides two important requirements ATP and NADPH to the Calvin Cycle. The light energy is stored in it. It provides the energy for the formation of energy rich chemical bonds in glucose. Finally, it changed into ADP.
Light-dependent reactions, which take place in the thylakoid membrane, use light energy to make ATP and NADPH. The Calvin cycle, which takes place in the stroma, uses energy derived from these compounds to make GA3P from CO2.
Which two molecules are directly produced in the Calvin cycle?
Products. The immediate products of one turn of the Calvin cycle are 2 glyceraldehyde-3-phosphate (G3P) molecules, 3 ADP, and 2 NADP+. (ADP and NADP+ are not really “products”. They are regenerated and later used again in the Light-dependent reactions).
Why is the light reaction and Calvin cycle dependent on each other?
The Calvin cycle refers to the light-independent reactions in photosynthesis that take place in three key steps. Although the Calvin Cycle is not directly dependent on light, it is indirectly dependent on light since the necessary energy carriers ( ATP and NADPH) are products of light-dependent reactions.