Q. Function of leghaemoglobin during biological nitrogen fixation in root nodules of legumes is to : (a) Convert atmospheric nitrogen to ammonia (b) Convert ammonia to nitrate (c) Transport oxygen…
Q. An immobile element in plants is : (a) Calcium (b) Potassium (c) Phosphorus (d) Nitrogen Solution : Correct option : A Ca is a macronutrient that absorbed by the…
Q. Necrosis of tissue, particularly leaf tissue is due to deficiency of : N, K, Mg, Fe, Mn, Zn and Mo Ca, Mg, Cu and K N, K and S…
Q. Which of the following is appropriate for mass-flow hypothesis : (a) Large amount of ions are also absorbed along with the absorption of water (b) As suction pressure increases,…