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Nitrogen fixation
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- Опубликовано: 19 авг 2024
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Nitrogen fixation is a process by which nitrogen (N2) in the atmosphere is converted into ammonia (NH3).[1] Atmospheric nitrogen or molecular nitrogen (N2) is relatively inert: it does not easily react with other chemicals to form new compounds. Fixation processes free up the nitrogen atoms from their diatomic form (N2) to be used in other ways.
Nitrogen fixation, natural and synthetic, is essential for all forms of life because nitrogen is required to biosynthesize basic building blocks of plants, animals and other life forms, e.g., nucleotides for DNA and RNA and amino acids for proteins. Therefore nitrogen fixation is essential for agriculture and the manufacture of fertilizer. It is also an important process in the manufacture of explosives (e.g. gunpowder, dynamite, TNT, etc.). Nitrogen fixation occurs naturally in the air by means of lightning.[2][3]
Nitrogen fixation also refers to other biological conversions of nitrogen, such as its conversion to nitrogen dioxide. Microorganisms that can fix nitrogen are prokaryotes (both bacteria and archaea, distributed throughout their respective kingdoms) called diazotrophs. Some higher plants, and some animals (termites), have formed associations (symbioses) with diazotrophs. Biological nitrogen fixation was discovered by the German agronomist Hermann Hellriegel and Dutch microbiologist Martinus Beijerinck. Source of the article published in description is Wikipedia. I am sharing their material. Copyright by original content developers of Wikipedia.
Link- en.wikipedia.or...
beautiful combination of biology with biochemistry with biogeochemical!
I have a lot of problems in understanding nitrogen fixation, but after your explanation, the subject becomes easier. Thank you vey much, doctor.
Thank you soo much sir after seeing this video I got 14.5/15 marks 😍
That's great
Sad to say I clicked on the video not expecting much but boy was I proven wrong. This is awesome and better yet, exactly what I was looking for. Thank you!
Thank you for appreciating my efforts
born for a good teacher..... GOD bless u
Thank you
Amazing just amazing Sir. What more can I say about the lecture? You are a life saver Sir in our life who is always there to guide us and show the correct way to proceed steadily in life studying Biology. Thank you very much Sir for always supporting us🙏🙏
Thank you, this video helped me a lot.
Thank you.
Hey ...You have done great job regarding this video....Very useful
Thank you, Shomu!!! :)
You're welcome
You explained a lot but maybe if you could do a simpler video which just works with the main ways the nitrogen cycle works cuz i didnt understand lot...
Aapke nematodes wale videos dekh kar hi pass huwa sir❤️
Thank you
Very very well sir ! Your explanation is very amazing 💥💥
You're welcome. Glad to hear that you're getting benefit from my lectures
Sir please do videos on synthesis and Degradation mechanism of Different Amino acids in detail.
Great video...It helped me a lot....
Your videos hell me a lot to understand the concept
Thanks sir
Thank. Glad you liked my lectures
Thanks a lot brother your videos are very helpful, hats off to you
superb.....👍 I want to see more vedios...👏👏👏👏👏👏
Helped a lot!
Thank You.
Plz make lecture on nitrogenase enzyme types
very clear and helpful video lecture for all of the learner. I learned a lot from the video thank you Mr.(the narrator).
Very helpful thank you
Thank You
You're welcome
Thank you so much 😊 Sir 🙏 for this video.🙏
Thank you for detailed explain. Can I get the reference about conversion from Mo6+ to Mo4+ in reaction? I was told that Mo oxidation states is unchanged in the reaction from some papers.
is that bio?
or chemistry ?
you saved my exam today
You're welcome
Very nice explanation but have to be improved by an experiment.here it really cleared that nitrogen fixation is converted into nitrates And also explaned about second type industrial nitrogen fixaation uses in high pressure temperature about 6000 degree celsius as you also know that temperature of sunligh is also 6000 degree celsius.and the type is biological atmospheric fixation this type of fixation carried out by bacteria
here is something about brief summary but now also i want to say by animation have to be improved
Thank you sir.Very useful ...
+DHANYA AS you're welcome
@@shomusbiologyofficial 😊
Thanks you so much sir ...nice teaching. ..
+TADAKAMALLA LAVANYA thank you.
Very nice so simple thanks to you for this 😊
Thanks it really help me
You're welcome
sir plzzzz make a video on organisation,function and regulation of N2 fixing genes in klebsiella,hup genes...
urgently needed .....
Great video. Thankyou. However, isn't artificial nitrogen fixation (haber process) now the largest nitrogen fixation producer?
No may be.. Biological nitrogen fixation accounts 60-65%,industrial account for 20-25% & natural i. e by electrification accounts about 10%
So informative
Thank you
I would disagree with the statement that bacteria in most cases are enemies. in most cases they are not a threat to us.
Wow great video sir..
very helpful vedio
Tq u some much sir ur video is very information full and easy to understand sir but I have one doubt ie sir majorly we find symbiotic and free living nitrogen fixation in nature then could u plz explain sir associative symbiotic nitrogen fixation that is take place in some cereals and oil crops sir
Is nitrogen cycle is different from nitrogen fixation??
Yes
take a shot every time he says "ok"
Sir, I have a question, as the bacterias fixes the Nitrogen only for their own growth and the amount required by the plant and excess amount of nitrogen is not fixed (as it has a controlling factor leghaemoglobin) So how can we say leguminous plants adds nitrogen into the soil? And if it does how?
I want to know what is nodulation gene or nod gene
Okay. I will make a video on that topic soon
Thank you so much for this video...can you please elaborate how did Mo4+ changed to Mo6+ in step 2, in the last part at 36:00 minutes
Can you please share this video’s reference I mean where you took from this content?
thanx sir
Thankyou 🙏
You're welcome
What kind of signal is sent by the host plants to bacteroids to convert CO to carbondioxide? Could u please tell?
Plz tell about role of bacteria in atmospheric nitrogen fixation
Nitrogen gas is really inert. Can you imagine how much energy one would need, if lighting or horror pressure and the extreme temperature is needed in order to break N-N triple bound of the gas, to break the bound? Well, maybe, the exact value could not describe it any better then it is great enough to crush the life out of somebody. And, here is my question: from where do the bacteria get all the energy to convert N2 gas to amonia NH3 in the soil ? Could a prokaryote be that powerful ?
The bacteria use enzymes to reduce the activation energy of the reaction, allowing the triple bond to be broken at lower temperatures. I think that the induced fit hypothesis means that enzymes apply pressure at the location on a nitrogen molecule which will weaken the triple bond the most. Much like Bruce Lee poking somebody in a pressure point and causing them to collapse!
thank u so much❤
+Mostafa Atef you're welcome
Thanks sir
thanx for posting dis video
i suggest neet aspirantz to watch this for 20 mints
You're welcome
God loves you! He loves you so much that he sent his one and only Son Jesus to die on the cross for your sins and the sins of all, so that whoever believes in Jesus shall not perish but will have eternal life. Take care!
+tryhardbballer That's nice. :-D
i thank him for blessing us with nitrogen
Have you considered shutting the fuck up with your shoving religion down peoples throats?
very nice video
Good information. i guess you are confused between the root nodule and crown gall (15.29th min).
well
why root nodules form only in legume why not any others plant
Prachi Tripathi they are formed.. but not by rhizomes.. it is formed by frankia
Thank you for the video. I do have a question for for you though, why do you right NO2 instead of NO3 for the nitrites? The written material states that it is three parts Oxygen, so is that a typo on the publisher that you are correcting, or is it that you were confused? I appreciate an answer for that, because I don't want to go around thinking that nitrites have two parts Oxygen if in fact they contain three parts Oxygen. Thanks again for your videos :)
+Tammy Mcpherson nitrites are NO2. While nitrates are NO3
Tammy Mcpherson ki
Bruh u were reading it wrong...those compound that end with the suffix "ate" have more molecules than those with the suffix "ite" or "ide"..example .nitrate has more O than nitrite...copper sulphate is CuSO4 and copper sulphide is CuS
Thanks
Really useful video well explained!
But I have a question...Why the N-fixation decrease the pH of the soil? I can not find anywhere
thank you
When the pH is high, there is low H ion levels. Ammonium (NH4) is predominant. This kind of setup causes the hydrogen ions in the environment to substract a proton from the ammonium ion therefore generates ammonia (NH3). The removed Hydrogen ions adds up therefore increasing the H ion levels now aaaand high H ion levels decreases the pH. Not an expert but, that's the idea of it. Hope it helps.
Sorry sir ,it is found that bacteria are mostly in favour of human survival than showing pathogenicity.
What is the name of reference book?? Reference sources?
Thanx 😎bro😎
You're welcome
Explained a lot and made it complicated..Make it more simple
sir if u improve your explaining it will be better
Watch new videos
ok sir
its a bit boring anyway thanks....try to make it a lot more simpler by going only through the main points .. i think it would be more effective and a lot more easier for students.you have adopted a real complex way teaching !!!!!!!
There is not the slides of this subject and if you have it in another link please send me that link
Bettr to study from book this is getting too complex
Sir ,may I know the book that u referred
hello plaise i need the photo of the contrôle of the nitrogen fixation and thank you
Tq sir
Why nitrogen can`t combine with other element
Sir from where can I download this lecture ppts ?
Omg the thumbnail at first I thought it’s a di-
Nitrogen fixation
This is applicable for which class?? Is it for 9???
If it suited your needs
Polygalacturronase come from ????
Please make anammox process😊🙏
Okay
@@shomusbiologyofficialwooow thank you doc 😍😍😍
Sir Aap csir net prepare krwate ho
Yes
nitrogen is 78% not 77%
lol i didnt even notice couldn't pay attention that far in got kinda boring
Please sir eski Hindi vedio nmbana dijiye
Hindi m
Atleast go through the slide first before making video, many times, it seems u r confused....