Notice that once the ATP donates a phosphate, it produces an intermediate product of 1,3- Page 8 8 bisphosphoglycerate. Then, when the NADPH adds the hydrogen ion, the G3P is fully formed. The last step of the Calvin Cycle is regeneration. From the 6 G3P produced, five are converted back into 3 RuBPs.
The Calvin cycle reactions ([Figure 2]) can be organized into three basic stages: fixation, reduction, and regeneration. In the stroma, in addition to CO2, two other chemicals are present to initiate the Calvin cycle: an enzyme abbreviated RuBisCO, and the molecule ribulose bisphosphate (RuBP).
All three necessary conditions are required – chlorophyll pigments, the chloroplast “theater,” and enzyme catalysts. The first stage transforms light energy into chemical energy, stored to this point in molecules of ATP and NADPH.Mar 5, 2021
The products are ATP and NADPH, and oxygen. ATP and NADPH supply energy for carbon fixation in the Calvin cycle . Oxygen is released into the atmosphere.Dec 12, 2021
Converting Carbon Dioxide and Water Into Glucose In the most general sense, the primary function of the Calvin cycle is to make organic products that plants need using the products from the light reactions of photosynthesis (ATP and NADPH).Nov 1, 2019
The Calvin cycle has four main steps: carbon fixation, reduction phase, carbohydrate formation, and regeneration phase. Energy to fuel chemical reactions in this sugar-generating process is provided by ATP and NADPH, chemical compounds which contain the energy plants have captured from sunlight.Nov 16, 2011
So, the correct option is 'Light'.
Calvin cycle is a dark reaction which means it is a light-independent cycle. It occurs in the absence of light during night time. It also occurs during daytime but the energy from sunlight is not needed by it to perform its function.
three phosphatesThink of it as the “energy currency” of the cell. If a cell needs to spend energy to accomplish a task, the ATP molecule splits off one of its three phosphates, becoming ADP (Adenosine di-phosphate) + phosphate.
What are the main products of the Calvin cycle? The main products of the Calvin cycle are 6 PGAL molecules, which are turned into one glucose molecule and three RuBP molecules.
ATP and NADPH are both products of the light reactions and are used to power the Calvin cycle.Dec 11, 2021
Describe the reactants and products of the calvin cycle. products=NADP⁺, ADP + third phosphate group, and sugars. Explain why this cycle is dependent upon the light reactions. This cycle is dependent on light reactions because the initial ATP and NADPH needed to fuel the cycle are products of the light reactions.