Amino acids are

Which of the following is used in our body as a fuel for muscles and nerves and to build and repair body tissues?

Which of the following amino acids is $NOT$ synthesized in our body?

Leucine amino acid is:

Which statement correctly completes the statement?
Except for glycine,which is achiral,all the amino acids present in proteins ......

Name the molecule which is eliminated during the formation of a peptide bond.