Potassium performs all of the following functions in plants except: A. Maintaining anion-cation balance in the cells B. Activation of many enzymes C. Photolysis of water D. Closing of stomata
Option C Potassium also helps regulate the opening and closing of the stomata, which regulates the exchange of water vapor, oxygen and carbon dioxide. If K is deficient or not supplied in adequate amounts, it stunts plant growth and reduces yield.
