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

Question

Which one of the following is wrong in relation to photorespiration?

D VINOD · Accepted Answer

## CORE INFORMATION
✓ **Answer**: D. 'It is the favored pathway for carbon fixation at low temperature'
## CONCEPT FRAMEWORK
	**Primary Concept**: Photorespiration
	**Related Topics**: Photosynthesis, C3 plants, C4 plants, Carbon fixation, RuBisCO
	**Prerequisites**: Basic understanding of plant physiology and photosynthesis.
## SOLUTION PATHWAY
**Given Information**:
	Multiple-choice question about photorespiration.
**Method & Steps**:
	1. Analyze each option based on the characteristics of photorespiration.
	2. Identify the incorrect statement.
	3. Validate the correct answer by explaining why the other options are correct.
## OPTION ANALYSIS
[A] ✓: 'It occurs in mitochondria, peroxisomes, and chloroplasts': This is correct. Photorespiration is a complex process that involves these three organelles.
[B] ✓: 'It is a wasteful process': This is correct. Photorespiration consumes energy and releases $CO_2$ without producing ATP or sugars, unlike photosynthesis.
[C] ✓: 'It occurs in C4 plants': This is correct. Although C4 plants have mechanisms to minimize photorespiration, it can still occur under certain conditions.
[D] :x: 'It is the favored pathway for carbon fixation at low temperature': This is incorrect. Photorespiration is favored at higher temperatures because the enzyme RuBisCO has a higher affinity for $O_2$ at higher temperatures, leading to oxygenation instead of carboxylation.
## LEARNING AIDS
	**Common Mistakes**:
		1. Confusing photorespiration with photosynthesis: Remember that photorespiration is a wasteful process, while photosynthesis is productive.
		2. Thinking C4 plants don't photorespire: While C4 plants minimize photorespiration, it can still occur.
	**Quick Tips**:
		1. Remember that RuBisCO's affinity for $O_2$ increases with temperature, favoring photorespiration.
		2. Photorespiration is a 'respiratory' process that occurs in the 'light' (photo), hence the name.

D VINOD · Answer

It occurs in mitochondria, peroxisomes, and chloroplasts

D VINOD · Answer

It is a wasteful process

D VINOD · Answer

It occurs in C4 plants

D VINOD · Answer

The correct Option is "It is the favored pathway for carbon fixation at low temperature"

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