Multiple choice Which of the following functions is performed by the microelements in plants? Cofactors of enzymes Building blocks of amino acids Constituent of hormones Binder of cell structure Reveal answer Fill a bubble to check yourself A Correct answer Explanation Microelements in plants act as cofactors of enzymes.they are boron (B), chlorine (Cl), manganese (Mn), iron (Fe), zinc (Zn), copper (Cu), molybdenum (Mo), nickel (Ni).