Proteins have primary structure. If you are given a method to know which amino acid is at either of the two termini (ends) of a protein, can you connect this information to purity or homogeneity of a protein?

Primary structure of protein can be understood by :-

Which structure provides the positional information of amino acid in a protein?

Can you describe what happens when milk is converted into curd or yoghurt from your understanding of proteins?

Can you describe what happens when milk is converted into curd or yoghurt, from your understanding of proteins ?

Enzymes are proteins. Proteins are long chains of amino acids linked to each other by peptide bonds. Amino acids have many functional groups in their structure. These functional groups are many of them at least, ionisable. As they are weak acids and bases in chemical nature, this ionisation is influenced by pH of the solution. For many enzymes activity is influenced by surrounding pH. This is depicted in the curve below, explain briefly.