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Why is the Calvin cycle called a cycle?
The Calvin cycle is called such because every process produces something that the next process needs, right back to the original step. Carbon fixation produces the molecules needed for reduction, which produces the molecules needed for the regeneration of ribulose, which produces what's needed for carbon fixation.
How many PGAL are used to regenerate three molecules of RUBP?
One molecule of PGAL has 3 carbons in it (therefore three turns are necessary). Six molecules would therefore require 18 turns of the Calvin Cycle.
How many ATP molecules are required to regenerate RuBP from five G3P molecules?
None. The Calvin cycle uses ATP and results in ADP.
What are the 3 basic events of light independet reactions?
The three basic events of light-independent reactions (Calvin cycle) are carbon fixation, reduction, and regeneration of RuBP. Carbon fixation involves utilizing CO2 to convert it into a usable form (3-PGA). Reduction involves converting 3-PGA into G3P using ATP and NADPH. Regeneration of RuBP involves converting G3P into RuBP to restart the cycle.
Before the calvin cycle begins where is the energy stored?
The energy needed for the Calvin cycle is stored in the form of ATP and NADPH molecules, which are produced during the light-dependent reactions of photosynthesis. These molecules provide the energy required for the Calvin cycle to convert carbon dioxide into carbohydrates.
What happens in the regeneration phase of the Calvin cycle?
During the regeneration phase of the Calvin cycle, the molecules needed to restart the cycle are produced. This includes the regeneration of RuBP (ribulose-1,5-bisphosphate) and the formation of new molecules of G3P (glyceraldehyde-3-phosphate) that can be used to create glucose and other carbohydrates.
What is the last step of the Calvin cycle?
The last step of the Calvin cycle is regeneration of RuBP (Ribulose-1,5-bisphosphate) using ATP to continue the cycle. This is necessary to replenish the RuBP molecules that are used in the initial carbon fixation step.
During the Calvin cycle, how many G3P molecules are required to regenerate RuBP?
During the Calvin cycle, three molecules of G3P are required to regenerate one molecule of RuBP.
How many molecules of G3P made during the Calvin cycle are required to produce one molecule of glucose?
Six molecules of G3P are required to produce one molecule of glucose during the Calvin cycle.
Which of the following does not occur during the Calvin cycle?
The consumption of oxygen does not occur during the Calvin cycle. This process involves carbon fixation, reduction of carbon compounds, and regeneration of RuBP. Oxygen is not directly involved in these steps.
Which of the following reactions ensures that the Calvin cycle can make a continuous supply of glucose?
The regeneration of RuBP (ribulose-1,5-bisphosphate) ensures that the Calvin cycle can make a continuous supply of glucose. This regeneration step allows the cycle to repeatedly fix carbon dioxide and synthesize glucose molecules.
Why is the Calvin cycle called a cycle?
The Calvin cycle is called such because every process produces something that the next process needs, right back to the original step. Carbon fixation produces the molecules needed for reduction, which produces the molecules needed for the regeneration of ribulose, which produces what's needed for carbon fixation.
What molecules are required for the Calvin cycle to occur?
The molecules required for the Calvin cycle to occur are carbon dioxide (CO2), water (H2O), and ATP (adenosine triphosphate) and NADPH (nicotinamide adenine dinucleotide phosphate) from the light-dependent reactions of photosynthesis. These molecules are used to convert carbon dioxide into glucose in the process of photosynthesis.
How many PGAL are used to regenerate three molecules of RUBP?
One molecule of PGAL has 3 carbons in it (therefore three turns are necessary). Six molecules would therefore require 18 turns of the Calvin Cycle.
What events occur during the Calvin cycle?
The Calvin Cycle has 3 series of reactions. They are Carbon Dioxide fixation, Carbon dioxide reduction, and regeneration of the first substrate RuBP ( ribulose 1,5 bisphosphate). It also produces ATP. Glucose is its outcome which is G3P (glyceraldehyde-3-phosphate).
How many ATP molecules are required to regenerate RuBP from five G3P molecules?
None. The Calvin cycle uses ATP and results in ADP.
What are the 3 basic events of light independet reactions?
The three basic events of light-independent reactions (Calvin cycle) are carbon fixation, reduction, and regeneration of RuBP. Carbon fixation involves utilizing CO2 to convert it into a usable form (3-PGA). Reduction involves converting 3-PGA into G3P using ATP and NADPH. Regeneration of RuBP involves converting G3P into RuBP to restart the cycle.
