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Question
A plant in your garden avoids photorespiratory losses, has improved water use efficiency, shows high rates of photosynthesis at high temperatures and has improved efficiency of nitrogen utilization. In which of the following physiological groups would you assign this plant?
A plant in your garden avoids photorespiratory losses, has improved water use efficiency, shows high rates of photosynthesis at high temperatures and has improved efficiency of nitrogen utilization. In which of the following physiological groups would you assign this plant?
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Solution
The correct option is B C4
Plants having high rate of photosynthesis at higher temperature belongs to C4 physiological group of plants. C4 photosynthesis is an adaptation for plants living in hot, arid climates.
Species with the C4 photosynthetic pathway have evolved biochemical CO2 concentrating mechanisms that allow Rubisco to function in a high CO2 environment. This increases both their nitrogen and water use efficiency compared to C3 species.
C3 plants requires an optimum temperature range of only 18 – 24 degree celsius.
Plants that use CAM photosynthesis gather sunlight during the day and fix carbon dioxide molecules at night.
Nitrogen fixing plants form a unique symbiotic relationship with bacteria known as rhizobia, which they allow to infect their roots. This leads to root nodule formation where bacteria are accommodated to convert nitrogen from the air into ammonia that the plant can use for growth.
Plants having high rate of photosynthesis at higher temperature belongs to C4 physiological group of plants. C4 photosynthesis is an adaptation for plants living in hot, arid climates.
Species with the C4 photosynthetic pathway have evolved biochemical CO2 concentrating mechanisms that allow Rubisco to function in a high CO2 environment. This increases both their nitrogen and water use efficiency compared to C3 species.
C3 plants requires an optimum temperature range of only 18 – 24 degree celsius.
Plants that use CAM photosynthesis gather sunlight during the day and fix carbon dioxide molecules at night.
Nitrogen fixing plants form a unique symbiotic relationship with bacteria known as rhizobia, which they allow to infect their roots. This leads to root nodule formation where bacteria are accommodated to convert nitrogen from the air into ammonia that the plant can use for growth.
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