In nitrogen fixing bacteria , the nitrogenase complex is sensitive to
O2
CO2
NO2
NO3
GIVE CORRECT OPTION AND REASON
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Answered by
2
Oh my god!!! Wow! Just wow!!
I might be exaggerating a bit but if the question is made by yourself, then god you're a genius. No, not because of the options one, but because of that reason thing. I don't even know the reason!
I never ever got the question about how the nitrogenase enzyme will be inhibited but wow, you've opened my eyes. To be honest, I've learned a new thing today due to this question!
So, nonsensical things aside, the answer is O2. The nitrogenase enzyme is sensitive to O2. That's the reason why the bacteria containing nitrogenase enzyme can't live on their own (Rhizobium)
The reason though (given by my lecturer) is that the inhibition arises from the binding of the two oxygen -sensitive proteins of nitrogenase to the Fe-S protein II (called the Shethna or protective protein) to form an 0xygen tolerant complex.
So, now you and I and all others who don't know got to know about it. All thanks to you!
P.S:- Even Cyanobacteria contain the enzyme but why do you think they can perform without any problem?
Ans:- It's because they are shelled by Heterocyst (as in nostoc and anabena) which restrict the reaction of oxygen with the enzyme. The sides of the bac. are protected by granules as well. :)
Keep exploring and keep learning! And thanks for asking the question, you rock!
Oh that question!!
I might be exaggerating a bit but if the question is made by yourself, then god you're a genius. No, not because of the options one, but because of that reason thing. I don't even know the reason!
I never ever got the question about how the nitrogenase enzyme will be inhibited but wow, you've opened my eyes. To be honest, I've learned a new thing today due to this question!
So, nonsensical things aside, the answer is O2. The nitrogenase enzyme is sensitive to O2. That's the reason why the bacteria containing nitrogenase enzyme can't live on their own (Rhizobium)
The reason though (given by my lecturer) is that the inhibition arises from the binding of the two oxygen -sensitive proteins of nitrogenase to the Fe-S protein II (called the Shethna or protective protein) to form an 0xygen tolerant complex.
So, now you and I and all others who don't know got to know about it. All thanks to you!
P.S:- Even Cyanobacteria contain the enzyme but why do you think they can perform without any problem?
Ans:- It's because they are shelled by Heterocyst (as in nostoc and anabena) which restrict the reaction of oxygen with the enzyme. The sides of the bac. are protected by granules as well. :)
Keep exploring and keep learning! And thanks for asking the question, you rock!
Oh that question!!
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