The Question is from neet-botany photosynthesis-in-higher-plants , and it was created by the author Mr. NARESH KUMAR K

Question

Photorespiration could easily be detected in

Mr. NARESH KUMAR K · Accepted Answer

## CORE INFORMATION
✓ **Answer**: A
## CONCEPT FRAMEWORK
	**Primary Concept**: Photorespiration and its relationship with different photosynthetic pathways.
	**Related Topics**: C3 photosynthesis, C4 photosynthesis, Rubisco enzyme, Oxygenase activity
	**Prerequisites**: Basic understanding of photosynthesis, differences between C3 and C4 pathways, the role of Rubisco.
## SOLUTION PATHWAY
**Given Information**:
	The question asks in which type of plants photorespiration is easily detected.
	The options are C3 plants, C4 plants, both, or none.
**Method & Steps**:
	1.	**Understand Photorespiration:** Photorespiration occurs when Rubisco, the enzyme responsible for carbon fixation in photosynthesis, binds with oxygen instead of carbon dioxide. This process is wasteful as it consumes energy and reduces the efficiency of photosynthesis.
		Reasoning: Photorespiration is a side reaction of the carbon fixation process.
	2.	**Compare C3 and C4 Plants:** C3 plants are more susceptible to photorespiration because Rubisco is directly exposed to both CO2 and O2. In C4 plants, the initial carbon fixation occurs in mesophyll cells using PEP carboxylase, which has a higher affinity for CO2 than Rubisco. C4 plants concentrate CO2 in bundle sheath cells where Rubisco is located, limiting oxygen access and thus reducing photorespiration.
		Reasoning: C4 plants have anatomical and biochemical adaptations to minimize photorespiration.
	3.	**Conclusion:** Therefore, photorespiration is easily detected in C3 plants because of the direct interaction of Rubisco with atmospheric oxygen, unlike C4 plants which have mechanisms to minimize it.
		Result: Photorespiration is readily observed in C3 plants.
		Verification: The answer is consistent with known differences in photosynthetic pathways.
## OPTION ANALYSIS
[A] ✓: C3 plants are more susceptible to photorespiration due to Rubisco's direct exposure to both CO2 and O2.
[B] :x: C4 plants have mechanisms to minimize photorespiration.
[C] :x: Since photorespiration is not easily detected in C4 plants, this option is incorrect.
[D] :x: Photorespiration does occur in C3 plants, so this option is incorrect.
## LEARNING AIDS
	**Common Mistakes**:
		1.[Error 1]: Confusing the photosynthetic pathways of C3 and C4 plants. [How to avoid]: Review the anatomical and biochemical differences between C3 and C4 plants.
		2.[Error 2]: Thinking photorespiration is equal in all plants. [How to avoid]: Understand the mechanisms that minimize photorespiration in C4 plants.
	**Quick Tips**:
		1.[Helpful shortcut]: Remember that C3 plants are the more primitive plants and hence susceptible to photorespiration.
		2.[Memory aid]: C4 plants are like “CO2 concentrators” minimizing oxygen interaction with Rubisco.

Mr. NARESH KUMAR K · Answer

The correct Option is "${C_3} - $ plants"

Mr. NARESH KUMAR K · Answer

${C_4} - $plants

Mr. NARESH KUMAR K · Answer

Both (a) and (b)

Mr. NARESH KUMAR K · Answer

None of these

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