Biochemistry is the study of the chemical reactions that occur within living organisms, how they are regulated, and what happens if there is a malfunction in these reactions. I graduated with first class honors with a master's degree in biochemistry and molecular biology and am currently a PhD student in biochemistry. I have 9 years of experience in teaching biochemistry in a simplified and easy way at the University of Sudan for Science and Technology. I also taught students in the medicine, pharmacy, medical laboratories and nursing programs.