Author: neetexam

Q. Boron assists in : (a) Activation of enzymes (b) Photosynthesis (c) Sugar transport (d) Acting as enzyme cofactor Solution : Correct option : C Boron is a micronutrient required…

Q. The most abundant element found in plants is : (a) Carbon (b) Nitrogen (c) Iron (d) Manganese Solution : Correct option : A Carbon is one of the macronutrients…

Q. Nitrifying bacteria are : (a) Autotrophs (b) Chemoautotrophs (c) Phototrophs (d) Heterotrophs Solution : Correct option : B Chemosynthetic bacteria are organisms which obtain energy from the oxidation of…

Q. Which is a free living nitrogen fixing bacterium? Pseudomonas Azotobacter Nitrosomonas Rhizobium Solution : Correct option : B Reduction of inert atmospheric nitrogen to ammonia by living organisms is…