Enzymes are made up of:
(A.) Edible protein
(B.) Proteins with specific structure
(C.) Nitrogen-containing carbohydrate
(D.) Carbohydrates

Hint: Enzymes are specific to substrates as they have an active site that only allows certain substrates to bind to the active site. Now try to figure out the answer using this hint properly in this question.

Complete step by step solution:In biochemistry, Enzymes are used as a biological catalyst.
We should know that a substance that helps a chemical reaction to occur is a catalyst, and the special molecules that catalyze biochemical reactions are called enzymes.
Generally, all enzymes are proteins, made up of chains of amino acids, and they perform the critical task of lowering the activation energies of chemical reactions inside the cell.
These are biological molecules that significantly speed up the rate of virtually all of the chemical reactions that take place within cells.
These are highly selective catalysts, meaning that each enzyme only speeds up a specific reaction.
They contain multiple $\alpha$ - amino acid groups bonded together by a peptide linkage(−CO−NH−).
The enzymes are proteins and the proteins are the long chains of amino acids.
The amino acids are joined to each other during the process of protein synthesis. So, ultimately the enzymes are made up of amino acids.
Hence, the Enzymes are made up of protein with a specific structure and act as a catalyst for biochemical reactions.
Therefore, we can conclude that the correct answer to this question is option B.

Note: We should know that Enzymes can bind prosthetic groups that participate in enzyme reactions. Prosthetic is not part of the enzyme polypeptide chain.