NEET2017BotanyPhotosynthesis in Higher PlantsActual
With reference to factors affecting the rate of photosynthesis, which of the following statements is not correct?
Options
- ALight saturation for C O 2 fixation occurs at 10% of full sunlight
- BIncreasing atmospheric C O 2 concentration up to 0.05% can enhance C O 2 fixation rate
- CC 3 plants respond to higher temperatures with enhanced photosynthesis, while C 4 plants have a much lower tem
- DTomato is a greenhouse crop that can be grown in C O 2 - enriched atmosphere for a higher yield
Correct answer
C. C 3 plants respond to higher temperatures with enhanced photosynthesis, while C 4 plants have a much lower tem
Step-by-step solution
In C 3 plants, photosynthesis is decreased at higher temperatures due to increased photorespiration. C 4 Plants have a higher temperature optimum because of the presence of pyruvate phosphate dikinase enzyme, which is sensitive to low temperature.