Answer:
Peptide bond
Explanation:
Peptide a short chain of amino acid; therefore the bond present is called peptide bond
Answer:
The shape of the enzyme determines which chemical reaction it will speed up.May strain the bonds of the substrate or put chemical groups of the active site in the correct position to speed up the reaction.
Out of the options I would have to say Penetrating Keratoplasty, I am not sure
