Q. Which element is constituent of biotin : Calcium Phosphorus Sulphur Magnesium Solution : Correct option : C Sulphur is constituent of Biotin i.e., vitamin B7 as this vitamin contains…
Q. Besides paddy fields, cyanobacteria are also found inside vegetative part of : (a) Psilotum. (b) Pinus. (c) Cycas. (d) Equisetum. Solution : Correct option : C Besides paddy fields,…
Q. The first stable product of fixation of atmosphere nitrogen in leguminous plants is : (a) Glutamate (b) NO2 (c) Ammonia (d) NO3 Solution : Correct option : C Explanation…
Q. The most abundant intracellular cation is : (a) K+ (b) Na+ (c) Ca2+ (d) H+ Solution : Correct option : C K+ is the most abundant intracellular cation involved in…