30. Peptides and Proteins

What is a peptide?

Which bond is a peptide bond in a polypeptide chain?

Which of the following best represents the backbone arrangement of two peptide bonds in a peptide chain?

Which molecule is released during the formation of a peptide bond?

How is a peptide bond formed in the synthesis of peptides?

In the backbone of a polypeptide, between which two atoms are peptide bonds located?

What is the chief function of pepsin in the digestion of $\mathrm{peptides}$?

Draw a tripeptide structure consisting of following amino acids in following order. Name tripeptide using 3 lettercodes.

Show the steps in the synthesis of the tetrapeptide Leu-Phe-Ala-Val.