Branches Of Biology

By: Shay Ellis


Melvin Kelvin


  • April 8th, 1911 - January 8th 1997
  • Kelvin's parents were Rose and Elias Kelvin. They were also Russian immigrant.
  • He married Genevieve Jemtegarrd and had two daughters and one son.
  • Attended the University of Minnesota (1935) and Michigan technological University (1931)
  • He became a Professor in 1947
  • Dr. Kelvin wrote books including Chemical Evolution, Following the trail of light, and Organic Chemistry of Life.

Melvin Kelvin's Work:

  • He earned his PHD at the University of Minnesota where he worked on the electron affinity of halogens.
  • In 1950 he developed a method to determine how Carbon Dioxide is assimilated in green plants during photosynthesis. Dr. Kelvin also called this method the Calvin Cycle" which he won the 1961 Nobel Prize in Chemistry.
  • Kelvin also did research on interactions between the quantum mechanical theory and chemical experimentation.

Kelvins Branch of Biology:

  • the branch he is connected with is biochemist.

Hans Krebs


  • Krebs lived August 25th, 1990 - November 22nd, 1981
  • He born in Germany
  • His father was Georg Krebs who was the ear nose and throat doctor of the city they lived in. Krebs mother was Alma Davidson.
  • Hans married Margaret Fieldhouse and had two sons and one daughter.
  • He received his education at Humboldt University of Berlin, University of Hamburg, and at Albert Ludwigs University of Freiburg

Hans Krebs Work:

  • Dr. Krebs did a lot of research on metabolism.
  • He also discovered the TricarBoxylic Acid cycle (a.k.a. Krebs Cycle) which is a citric acid cycle.
  • For the discovery of this cycle he was awarded the Nobel Prize in Physiology, in 1953.
  • Krebs not only came up with that cycle but also an alternative for that cycle known as the Glyoxylate cycle.

Krebs Branch of Biology:

  • Hans Krebs is also connected with the biochemistry branch.

Rudolph Marcus


  • July 21, 1923 - current
  • Marcus was born in Montreal, Quebec.
  • Dr. Marcus received his PHD at Oxford.
  • Attended the University at North Carolina where did research on Postdoctoral.
  • Marcus became a professor of chemistry at the California Institute of Technology.

Rudolph Marcus's Work:

  • Marcus helped with the theory of electron transfer reactions in chemical systems, which won the nobel prize in chemistry in 1992.
  • He also won many other awards including the Columbia University Chandler medal, Professorial Fellowship at university College, Oxford, the National medal of Science, and the Hischfeider Prize in Chemistry.

Marcus Branch of Biology:

  • He would also be considered the biochemistry branch.