Home Page

The complete history of the Universe -- from the Big Bang to 200 my into the future

Loading

History of the Universe eBook. 398 pages, 300 illustrations only $2.99

Previous pageNext page

Nitrogen Fixation

Fixing nitrogen means splitting nitrogen molecules into atoms, and using those atoms to build other molecules, such as nitrates or ammonia compounds. These can then be used by other plants to build protein, one of the main components of life.

Two kinds of nitrogen-fixing bacteria are recognized: blue-green and other types of free-living bacteria, and symbiotic bacteria associated with leguminous plants and cereal grasses.

Previous pageNext page


History of the Universe eBook. 398 pages, 300 illustrations only $2.99

eBook only $2.99
398 pages, 300 images

"I find the science fabulous...an extremely useful teaching tool."
Professor David Christian

Become a Citizen of the Universe

and get your free badge!