The right option is; The body cannot make them.
Amino acids are organic compounds that perform many important roles in the body including building of proteins, and production of neurotransmitters and hormones. Based on some factors, amino acids are grouped into two; essential, and nonessential amino acids. The essential amino acids are the amino acids that the body cannot produce on its own, and must be obtained by eating various foods. The nine essential amino acids are; isoleucine, histidine, leucine, phenylalanine, lysine, tryptophan, methionine, threonine, and valine.
They are things your body cannot produce on it's own
all structural proteins are ma...