Author: neetexam

Q. Chief sink of mineral elements is : Bark Ripe fruits Senescent leaves Lateral meristems Solution : Correct option : D The chief sink of minerals in the plant is…

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…