Maud Lenora Menten was born in Port Lambton, Ontario, Canada in 1879 and died in 1960. She received her B.A. in 1904 and a masters in biology [chloride distribution in nerve cells] from the University of Toronto in 1907; in 1911 she received her medical doctorate from the University of Toronto. She was a demonstrator of physiology at the University of Toronto, a research fellow at the Rockefeller Institute, and faculty member at Western Reserve University.
     While she was studying in Berlin [1913] with Lenoir Michaelis, the Michaelis-Menten equation was developed. This equation gives an expression for the rate of an enzyme reaction and became fundamental to the interpretation of how an enzyme reacts on its substrate. Maude Menten returned to the U.S. and earned a Ph.D. in biochemistry at the University of Chicago [1916] and later became an assistant professor [1923] on the faculty of the University of Pittsburgh School of Medicine [1923-1950].