7.5 Proteins. The 20 different amino acids 7.5.1: Explain the four levels of protein structure, indicating the significance of each level.
Enzymes Enzymes are usually proteins which act as biological catalysts for metabolic reactions Enzymes enhance the rate at which the chemical reactions.
Enzymes-cofactors Dr. Mamoun Ahram. Resources Biochemistry. 5th edition. Berg JM, Tymoczko JL, Stryer L. New York: W H Freeman; 2002. – 8.1.1 Many Enzymes.
