Which is the $C$-terminal residue in glycyl alanine?

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

Assertion : Proteins on hydrolysis produce amino acids.
Reason : Amino acids contain $-NH_2$ and $-COOH$ groups.

Which is an essential constituent of diet?

Which of the following basic amino acids is the least basic?

Which of the following molecules is eliminated during peptide bond formation?