Question

Nodules in soybean plant experts the fixed nitrogen in the form of

• A. ureides
• B. amides
• C. amino acids
• D. both (b) and (c)

Answer 1

The correct option is A ureides

A. Ureides (degraded urea) are employed as a means of nitrogen transport from the nodules of some legumes( e.g., Soya-bean) and re- transport from the ageing organs. They have a high nitrogen to carbon ratio.

B. Amides, double aminated keto acids. The two most common amides are glutamine and asparagine.

C. The nitrogen fixers protect themselves from it by providing organic acids. The reaction between ammonia and organic acids give rise to amino acids.

So, the correct answer is 'Ureids'.