Which of the following is an example of nutrient in its reduced form?
Hydrogen in
Carbon in
Nitrogen in
Sulphur in
Related Questions
Thiobacillus bacteria contribute to the cycling of which element?
Carbon
Nitrogen
Phosphorus
Sulfur
Which of the following plant with nodule containing filamentous nitrogen – fixing micro – organism?
casuarina equisetifolia
crotalaria juncea
cycas revoluta
cicer arietinum
Which of the following is a free living aerobic non – photosynthetic nitrogen fixer?
Rhizobium
Azotobacter
Azo spirillum
Nostoc
Which of the following forms nitrogen-fixing nodules on the roots of Alnus?
Rhizobium
Frankia
Azotobacter
Nostoc
Thiobacillus is a group of bacteria helpful in carrying out
Nitrogen fixation
Chemoautotrophic fixation
Nitrification
Denitrification
Which of the following processes is facilitated by Thiobacillus bacteria?
Phosphorus solubilization
Sulfur oxidation
Iron reduction
Methane production
Which of the following is a bacterium involved in denitrification?
Nitrococcus
Nitosomonas
Pseudomonas
Nitrobacter
Free living nitrogen fixing bacteria are
Bacillus polymixa
Rhodoseudomonas
E. coli
Anabaena
Which of the following gene clusters in bacteria is responsible for nitrogen fixtion?
Nod, nif, fix
Nod, ndf, nfx
Nod, nix, nfx
Ndx, nif, fix
The process of conversion of soil nitrates into free is called (I) and is carried out by bacteria (II)
Nitrogen fixation and Nitrogen-fixing bacteria
Nitrification and Nitrifying bacteria
Denitrification and Denitrifying Bacteria
Ammonification and Ammonifying bacteria
