Which one is an essential mineral, not constituent of any enzyme but stimulates the activity of many enzymes (A) Zn (B) Mn (C) K (D) Mg
Option C.Potassium is a macronutrient absorbed by the plant as potassium ion (K+). It helps in maintaining an anion-cation balance in cells and is involved in the protein synthesis, opening and closing of stomata, activation of many enzymes and in the maintenance of the turgidity of the cells.
