Machine-translated by Google. Questions are authored in English.
Top

Discussion

Which pair correctly matches an organism with its role in soil?

  • A.Thiobacillus with fixation of nitrogen
  • B.Azotobacter with reduction of sulphate
  • C.Nitrosomonas with oxidation of ammonium
  • D.Rhizobium with oxidation of nitrite

Answer: C

Only the first pairing is right. Rhizobium fixes nitrogen rather than oxidising nitrite, which is Nitrobacter's work; Thiobacillus oxidises sulphur rather than fixing nitrogen; and sulphate reduction belongs to Desulfovibrio, not to the nitrogen-fixing Azotobacter.

No comment is present. Be the first to comment.
Loading…

Post your comment

Please log in or register to post a comment.