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The molecule regenerated in the Calvin cycle is RuBP (ribulose-1,5-bisphosphate). It is regenerated at the end of each cycle to continue the process of carbon fixation and sugar production in plants.
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What makes the Calvin cycle a cycle?
The Calvin cycle is a cycle because it begins and ends with the same molecule, ribulose-1,5-bisphosphate (RuBP). This molecule is regenerated at the end of the cycle after it undergoes a series of reactions that produce sugars used by the plant for energy.
Which molecule is a reactant in the first step and final product in the fourth step of the Calvin Benson cycle?
RuBP
How many times must the Calvin cycle turn for the plant cell to be able to produce molecule of glucose?
six
Which substrate is regenerated after one cycle of the Kreb's cycle?
Oxaloacetate is the substrate that is regenerated after one cycle of the Krebs cycle. It combines with acetyl-CoA to continue the cycle.
Why is the Calvin cycle called a cycle?
The Calvin cycle is called a cycle because it is a series of biochemical reactions that regenerate the starting molecule. The cycle starts with a 5-carbon molecule (RuBP) and ends with the regeneration of RuBP, allowing the process to continue in a cyclic manner.
What makes the Calvin cycle a cycle?
The Calvin cycle is a cycle because it begins and ends with the same molecule, ribulose-1,5-bisphosphate (RuBP). This molecule is regenerated at the end of the cycle after it undergoes a series of reactions that produce sugars used by the plant for energy.
Which molecule is a reactant in the first step and final product in the fourth step of the Calvin Benson cycle?
RuBP
What are the similarities between the Krebs Cycle and the Calvin cycle?
Similarity: They are both cycles, therefore both have a reactant that s regenerated. In the Krebs Cycle, oxaloacetate is regenerated. In the Calvin cycle, RuBP is regenerated (ribulose 1, 5-bisphosphate). Difference: Glucose is completely broken down in the Krebs Cycle to carbon dioxide, which in the Calvin Cycle, glucose is made as a product.
What is the molecule that is regenerated with every turn of the Krebs cycle?
Each turn of the Kreb's cycle must regenerate oxaloacetate.
How many times does the Calvin cycle turn to make 1 molecule of glucose C6H12O60?
The Calvin cycle needs to turn six times to produce one molecule of glucose (C6H12O6) because glucose is a six-carbon molecule. Each turn of the Calvin cycle incorporates one CO2 molecule into a three-carbon compound, which after six turns, is rearranged and combined to form a glucose molecule.
How many times must the Calvin cycle turn for the plant cell to be able to produce molecule of glucose?
six
Which substrate is regenerated after one cycle of the Kreb's cycle?
Oxaloacetate is the substrate that is regenerated after one cycle of the Krebs cycle. It combines with acetyl-CoA to continue the cycle.
Why is the Calvin cycle called a cycle?
The Calvin cycle is called a cycle because it is a series of biochemical reactions that regenerate the starting molecule. The cycle starts with a 5-carbon molecule (RuBP) and ends with the regeneration of RuBP, allowing the process to continue in a cyclic manner.
How does RuBP get regenerated?
RuBP (ribulose-1,5-bisphosphate) gets regenerated during the Calvin cycle, a series of enzymatic reactions that occur in the stroma of chloroplasts. The enzyme RuBisCO catalyzes the addition of carbon dioxide to RuBP, forming an unstable molecule that quickly breaks down into two molecules of 3-phosphoglycerate. These molecules are then converted into other compounds, ultimately leading to the regeneration of RuBP to continue the cycle.
Which molecule from the Calvin cycle is used to replenish RuBP?
Glyceraldehyde-3-phosphate (G3P) is the molecule from the Calvin cycle that is used to replenish ribulose-1,5-bisphosphate (RuBP). G3P is produced during the reduction phase of the Calvin cycle and can be converted back to RuBP through a series of enzymatic reactions.
What does RuBP mean?
RuBP stands for ribulose-1,5-bisphosphate. It is a five-carbon molecule involved in the Calvin cycle, a series of reactions in photosynthesis where carbon dioxide is converted into glucose. RuBP is regenerated during the cycle to ensure its continuous availability for fixing carbon dioxide.
What molecule is recycled and reused in the Krebs cycle?
The molecule that is recycled and reused in the Krebs cycle is oxaloacetate. This molecule reacts with acetyl-CoA to initiate the cycle, and at the end of the cycle it is regenerated to combine with another molecule of acetyl-CoA to continue the process.
