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Answered

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Nitrogen is required for protein formation. What is responsible for the bulk of nitrogen fixation?
A.
air

B.
animals

C.
bacteria

D.
lightning

Sagot :

josinclair73

Answer:

The factor with the responsibility for nitrogen fixation is bacteria (option C).

Explanation:

The nitrogen that contributes to the formation of proteins comes from plants. Due to the inorganic nature of nitrogen, plants require bacteria to contribute to the assimilation of this element, a process called biological nitrogen fixation.

Nitrogen fixing bacteria in plants are called diazotroph and, in some cases, establish a symbiosis with the plant's roots, the rhizobia.

  • The other options, air, animals and lightning, do not correspond to biological nitrogen fixers with the ability to incorporate nitrogen into plants.
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