Okay so it's Edexcel 5 tomorrow
I can't find my module 2+3 purple book anywhere so i'm having to use my regular A-level biology textbook which isn't nearly as specific and doesn't cover all of the Edexcel course even thought it's huge
I'm trying to check up on Unit 3 nitrogen cycle and named bacteria in the nitrogen cycle
Unfort my textbook only names a few and my computer won't open the Edexcel spec - the plug in is muffed up
So i remember Nitrosomonas as NH4 to NO2- and Nitrobacter as NO2- to NO3- and Rhizobium as N2 to NH4+
(Correct me if i'm wrong!!)
But could somebody tell me what the others are - i vaguely remember an Azobacter maybe... whether they're in the soil, which ones are symbiotic with the legumes and what they convert!!
Thanks in advance guys
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Nitrosomonas + co watch
- Thread Starter
- 20-06-2005 20:45
- 20-06-2005 21:09
Azobacter do the same as Rhizobium except they are found free in the soil
Pseudomonas and Thilobactillus are denitrifying bacteria and convert NH4+ back into N2
Good luck for tomorrow!