Give reason. Why C4 plants are favoured in tropical regions?

Monjur Alahi

Give reason. Why C4 plants are favoured in tropical regions?


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Salim Ahmed Kawsar

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1. C4 plants are favoured in tropical regions as they require 30 ATP to produce 1 molecule of glucose. 

2. High temperature in tropical regions leads to closure of stomata to reduce rate of transpiration. Due to this availability of CO2 decreases. 

3. PEP carboxylase present in mesophyll cells can fix CO2 even at low concentration. This helps the plant in efficient assimilation of atmospheric carbon dioxide. 

4. C4 plants contain a special leaf anatomy called Kranz anatomy which minimizes the losses due to photorespiration. 

5. It helps C4 plants to survive in conditions of high daytime temperatures, intense sunlight and low moisture.

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