Among the given options, storing energy inside the cell is not the function of protein. The correct option is a.
A protein is a natural sources, extremely complex substance made up of amino acid residues linked together by peptide bonds.
Proteins are encountered in all lifeforms and encompass a variety of mandatory biologically active compounds such as enzymes, hormones, and antibodies.
Amino acids are basically the compounds that generates proteins when they combine. The building blocks of life are amino acids and proteins.
Amino acids are left over after proteins are digested or broken down.
Proteins are large, large molecules that perform numerous important functions in the body.
They are necessary for the structure, function, and regulation of the body's tissues and organs and do the majority of the work in cells.
Thus, the correct option is a.
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