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If RuBP (ribulose bisphosphate) disappeared from a plant, the Calvin cycle would be severely disrupted, as RuBP is essential for carbon fixation during photosynthesis. Without RuBP, plants would be unable to convert carbon dioxide into glucose, leading to a significant decline in energy production and overall plant growth. This deficiency could ultimately result in the plant’s inability to survive, as it would not produce the necessary organic compounds for metabolism and energy. Additionally, the absence of RuBP would impact the entire ecosystem, as plants play a crucial role in oxygen production and carbon cycling.
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What would happen if the molecule RuBP no longer functioned in a plant?
If the molecule RuBP (Ribulose-1,5-bisphosphate) no longer functioned in a plant, the Calvin Cycle, which is a key part of photosynthesis, would be disrupted. This would negatively impact the plant's ability to fix carbon dioxide and produce energy, ultimately leading to a decrease in plant growth and productivity.
Name the compound of CO2 acceptor in C3 plant?
In C3 plants RuBP is the only significant CO2 acceptor. Ribulose-1,5-bisphosphate (RuBP) is an organic substance that is involved in photosynthesis.
Explain what might happen if the third step of the Calvin cycle did not occur.?
I assume you have the Holt, Rinehart and Winston worksheets.So your question was :'If the RuBP consumed in Step 1 was not regenerated in Step 4 of the Calvin Cycle, then,a. CO2 would stop diffusing into the stroma.b. the cycle would speed up because of an increase in CO2 molecules.c. the plant cell would lack G3P molecules.d. the plant cell would stop bonding carbon atoms from CO2 into organic compoundsThe two you can immediately cross out are A and B because diffusion of CO2 has nothing to do with RuBP. As for B, the cycle would not speed up. If anything, it would slow down or stop.Now, we are left with:c. the plant cell would lack G3P molecules.d. the plant cell would stop bonding carbon atoms from CO2 into organic compoundsThe article you read on the front sheet [I will not copy that down] never specified much on whether or not the cell would stop bonding carbon atoms from CO2 into organic compounds, so I personally settled for C. My reasoning behind this is that G3P is made from RuBP, and without it, the cell, like the answer states would lack G3P.TL;DR the answer is 'D'I do hope this helped. Good luck with Bio!Edit: answer is D
What is produced in green plant cells during light independent reactions?
It is the final step. It remakes RUBP and makes glucose.
How many molecules of RuBP are required to produce 20 molecules of serine in photorespiration?
In photorespiration, each molecule of serine produced requires one molecule of ribulose bisphosphate (RuBP) to enter the cycle. Since each RuBP can ultimately lead to the production of one molecule of serine, producing 20 molecules of serine would require 20 molecules of RuBP. Therefore, 20 molecules of RuBP are needed to produce 20 molecules of serine in photorespiration.
What would happen if the molecule RuBP no longer functioned in a plant?
If the molecule RuBP (Ribulose-1,5-bisphosphate) no longer functioned in a plant, the Calvin Cycle, which is a key part of photosynthesis, would be disrupted. This would negatively impact the plant's ability to fix carbon dioxide and produce energy, ultimately leading to a decrease in plant growth and productivity.
Why is it necessary to regenerate RuBP during the Calvin Cycle?
Regenerating RuBP during the Calvin Cycle is necessary because RuBP is the molecule that captures carbon dioxide from the atmosphere and initiates the process of carbon fixation. Without regenerating RuBP, the Calvin Cycle would not be able to continue and produce glucose, which is essential for plant growth and energy production.
Name the compound of CO2 acceptor in C3 plant?
In C3 plants RuBP is the only significant CO2 acceptor. Ribulose-1,5-bisphosphate (RuBP) is an organic substance that is involved in photosynthesis.
Explain what might happen if the third step of the Calvin cycle did not occur.?
I assume you have the Holt, Rinehart and Winston worksheets.So your question was :'If the RuBP consumed in Step 1 was not regenerated in Step 4 of the Calvin Cycle, then,a. CO2 would stop diffusing into the stroma.b. the cycle would speed up because of an increase in CO2 molecules.c. the plant cell would lack G3P molecules.d. the plant cell would stop bonding carbon atoms from CO2 into organic compoundsThe two you can immediately cross out are A and B because diffusion of CO2 has nothing to do with RuBP. As for B, the cycle would not speed up. If anything, it would slow down or stop.Now, we are left with:c. the plant cell would lack G3P molecules.d. the plant cell would stop bonding carbon atoms from CO2 into organic compoundsThe article you read on the front sheet [I will not copy that down] never specified much on whether or not the cell would stop bonding carbon atoms from CO2 into organic compounds, so I personally settled for C. My reasoning behind this is that G3P is made from RuBP, and without it, the cell, like the answer states would lack G3P.TL;DR the answer is 'D'I do hope this helped. Good luck with Bio!Edit: answer is D
What is produced in green plant cells during light independent reactions?
It is the final step. It remakes RUBP and makes glucose.
How many molecules of RuBP are required to produce 20 molecules of serine in photorespiration?
In photorespiration, each molecule of serine produced requires one molecule of ribulose bisphosphate (RuBP) to enter the cycle. Since each RuBP can ultimately lead to the production of one molecule of serine, producing 20 molecules of serine would require 20 molecules of RuBP. Therefore, 20 molecules of RuBP are needed to produce 20 molecules of serine in photorespiration.
Describe what can happen to PGAL molecules made in the Calvin cycle?
PGAL molecules made in the Calvin cycle can be used to regenerate RuBP (ribulose-1,5-bisphosphate) for further carbon fixation, or they can be converted into glucose and other carbohydrates through a series of enzyme-catalyzed reactions. These carbohydrates can be used for energy production, stored as starch, or converted into other biomolecules needed by the plant.
In phosphorylation is ATP utilized to regenerate RuBP?
During the carbon reduction cycle in plants during phosphorylation, ATP is used to break down RuBP and form glucose and other sugars however ATP is Not used while the cycle is regenerating RuBP.
What is the loss of carbon-fixing activity of the enzyme RuBP carboxylase directly proportional to?
The loss of carbon-fixing activity of the enzyme RuBP carboxylase is directly proportional to the rate of photorespiration in the plant. As photorespiration increases, the enzyme's efficiency in fixing carbon dioxide decreases, leading to reduced photosynthetic productivity.
How many carbon dioxide molecules would need to be added to RuBP to make a single molecule of glucose?
3
What will happen to the concentration of RuBP and GP if the supply of carbon dioxide is reduced?
If the supply of carbon dioxide is reduced, the concentration of RuBP (ribulose-1,5-bisphosphate) will increase as it accumulates without being converted into GP (glycerate-3-phosphate). On the other hand, the concentration of GP will decrease since there will be fewer reactants available for its formation in the Calvin cycle.
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.
