Q. Denitrification is carried out by : (a) Pseudomonas and Nitrosococcus (b) Nitromonas and Nitrobacter (c) Nitrosomonas and Nitrosococcus (d) Pseudomonas and Thiobacillus Solution : Correct option : D Pseudomonas and Thiobacillus cause denitrification which is the conversion of nitrites into Nitrogen gas…
Q. Which one of the following helps in absorption of Phosphorus from soil by plants : (a) Frankia (b) Anabaena (c) Glomus (d) Rhizobium Solution : Correct option : C…
Q. Leghaemoglobin functions as : (a) Oxygen scavenger (b) Nitrogen scavenger (c) CO2 Scavenger (d) Hydrogen carrier Solution : Correct option : A The root nodules of the leguminous plants…
Q. An element playing important role in nitrogen fixation is : (a) Copper (b) Manganese (c) Boron (d) Molybdenum Solution : Correct option : D Molybdenum plays important role in nitrogen fixation…