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Question
The given figure shows the structure of filamentous blue green algae Nostoc with a structure marked as "X". Select the option which shows the correct identification of "X" with its feature.
The given figure shows the structure of filamentous blue green algae Nostoc with a structure marked as "X". Select the option which shows the correct identification of "X" with its feature.
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Solution
The correct option is C Heterocysts - Nitrogen fixation
The structure marked X are called heterocysts. Heterocysts are pale-yellow and thick-walled. They are capable of nitrogen fixation and therefore play a major part in the nitrogen cycle.
The structure marked X are called heterocysts. Heterocysts are pale-yellow and thick-walled. They are capable of nitrogen fixation and therefore play a major part in the nitrogen cycle.
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