Tamilnadu BoardEnglish MediumSTD 11BIO BOTANYMineral Nutrition3 Marks
Question
Describe briefly the method of nitrogen fixation in leguminous plants.
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Answer
Rhizobium bacterium is found in leguminous plants and fix atmospheric nitrogen. This kind of symbiotic association is beneficial for both the bacterium and plant. Root nodules are formed due to bacterial infection. Rhizobium enters into the-host cell and proliferates, it remains separated from the host cytoplasm by a membrane.
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