NURSING EXAM QUESTIONS
MICROBIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Is that sentence true:“Cyanobacteria can atmospheric fix nitrogen in aerobic conditions by means of specialized cells called heterocysts. “
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True.
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False.
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Either A or B
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None of the above
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Explanation:
Detailed explanation-1: -A heterocyst is a differentiated cyanobacterial cell that carries out nitrogen fixation. The heterocysts function as the sites for nitrogen fixation under aerobic conditions. They are formed in response to a lack of fixed nitrogen (NH4 or NO3).
Detailed explanation-2: -Anabaena is a cyanobacterium or blue-green algae. It can fix atmospheric nitrogen. They have specialized cells for nitrogen fixation called heterocysts.
There is 1 question to complete.