They fix nitrogen from dinitrogen (N2) in the air using the enzyme nitrogenase, in order to provide the cells in the filament with nitrogen for biosynthesis. Nitrogenase is inactivated by oxygen, so the heterocyst must create a microanaerobic environment.
Vitamin B12 is an especially important vitamin for maintaining healthy nerve cells, and it helps in the production of DNA and RNA, the body's genetic material. Vitamin B12 works closely with vitamin B9, also called folate or folic acid, to help make red blood cells and to help iron work better in the body.
B Vitamins. There are a few types of these nutrients, and theyâre all good for your body. But three of them -- vitamins B6, B12, and folic acid -- are especially important.Vitamin B6 is also known as pyridoxine. You need it to keep your brain working well and to help your body convert food into energy, called metabolism.It can be toxic if you get too much of it at once.ut three of them -- vitamins B6, B12, and folic acid -- are especially important. Vitamin B6 is also known as pyridoxine. You need it to keep your brain working well and to help your body convert food into energy, called metabolism. It can be toxic if you get too much of it at once.