Biochemistry in a nutshell is two worlds merged, or combined. Biology on the one hand and chemistry on the other. It is almost debatable about which came first, but the bets are on. That biology has come first because chemistry is a fairly new field within the last 200 years, or perhaps since the beginning of the 1800s. Furthermore, biochemistry is the study of the chemical structures of which the organism is built, and of the chemical processes in the organism that together express life.