Biochemical vs Physiological - What's the difference?

As adjectives the difference between biochemical and physiological

is that biochemical is of, or relating to biochemistry while physiological is of, or relating to physiology.

is a chemical substance derived from a biological source.

(head)

of, or relating to biochemistry

characterized by, produced by, or involving chemical processes in living organisms

(en noun)

a chemical substance derived from a biological source

(en adjective)

Of, or relating to physiology.

Relating to the action of a drug when given to a healthy person, as distinguished from its therapeutic action.

* physiologic