The function of most proteins depends primarily on the

1.type and order of amino acids. 2.environment of the organism.3.availability of starch molecules.

1) according to the law of conservation of mass ,in all chemical reactions total mass is unchanged

(no3)⁻n has oxidation number x,o has oxidation number -2.(x*1 -2*3) charge of the nitrate ion, and we know that charge of the nitrate ion =-1.so,(x*1 -2*3) =-1x-6=-1x=+5answer a. +5.