The Question is from neet-botany photosynthesis-in-higher-plants , and it was created by the author D VINOD

Question

RUBP is?

D VINOD · Accepted Answer

## CORE INFORMATION
✓ **Answer**: D
## CONCEPT FRAMEWORK
	**Primary Concept**: The role of RuBP in the Calvin Cycle (RPP cycle).
	**Related Topics**: Photosynthesis, Carbon Fixation, Calvin Cycle, RPP cycle
	**Prerequisites**: Basic understanding of the Calvin cycle and its stages.
## SOLUTION PATHWAY
**Given Information**:
	The question asks for the function of RuBP.
**Method & Steps**:
	1. Recall the role of RuBP in the Calvin cycle.
		Reasoning: RuBP is a 5-carbon molecule that initiates the Calvin cycle by accepting carbon dioxide.
		Formula/Rule: N/A
	2. Identify the correct option based on this knowledge.
		Working: RuBP is the primary CO2 acceptor, initiating the cycle.
		Key Point: The Calvin cycle is also known as the RPP cycle.
	3. Conclude that option D is the correct answer.
		Result: The correct answer is D.
		Verification: RuBP is the molecule that combines with CO2 to start the Calvin cycle.
 ## OPTION ANALYSIS
[A] :x: RuBP is not involved in PCR cycle.
[B] :x: RuBP is involved in the carboxylation phase not reduction phase.
[C] :x: RuBP is the starting molecule of carboxylation phase not the last molecule.
[D] ✓: RuBP is the primary acceptor of carbon dioxide in the Calvin cycle (RPP cycle).
 ## LEARNING AIDS
	**Common Mistakes**:
		1. Confusing RuBP with other molecules in photosynthesis:  Remember RuBP's role is specifically as a CO2 acceptor.
		2. Confusing the stages of the Calvin cycle: Keep the carboxylation, reduction, and regeneration phases distinct.
	**Quick Tips**:
		1. Remember RuBP as the 'starting point' of the Calvin cycle by accepting CO2.
		2. Use mnemonic like R-C-R (RuBP, Carboxylation, Reduction) to remember the sequence of cycle.

D VINOD · Answer

First stable compound in PCR cycle

D VINOD · Answer

Substrate for reduction phase

D VINOD · Answer

Last compound of carboxylation phase

D VINOD · Answer

The correct Option is "Primary $C{O_2}$ acceptor of RPP cycle"

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