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Hans Adolf Krebs Legacy

Explore the groundbreaking work of Hans Adolf Krebs, a biochemist best known for discovering the Krebs cycle, a fundamental pathway in cellular respiration that transformed our understanding of energy production in living organisms.By Confinity Heritage Editorial · 2026-04-23 · 6-minute read

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Hans Adolf Krebs

Historical

Aug 25, 1900

Nov 22, 1981

Sir Hans Adolf Krebs was a German-born British biochemist who contributed immensely to the discovery of metabolic cycles such as the Urea Cycle and the Citric Acid Cycle, also known as the Krebs Cycle. Hans was born in Hildesheim, Germany, to Georg Krebs, a surgeon specializing in ear, nose, and throat ailments. He first attended the University of Göttingen to do his medicine before moving to the University of Freiburg and later to the University of Berlin. He completed his M.D. in 1925 at the University of Hamburg and continued his studies in chemistry, to which he devoted his future career and biochemical research. Krebs established his scientific career when he moved to the Kaiser Wilhelm Institute for Biology in Berlin, where he worked under Otto Warburg. He then went back to clinical work at different hospitals in Germany. His research was significant in the discovery of the urea cycle, a metabolic cycle responsible for synthesizing urea in the liver, and this was the first cycle ever discovered. Nonetheless, Krebs' experience in Germany was not extended because the Nazi regime expelled him from his university post because of his Jewish background. He escaped to Britain in 1933 and continued with his research. In 1937, while at the University of Sheffield, he identified the citric acid cycle, which is essential in aerobic organisms for energy metabolism. He was awarded the Nobel Prize in Physiology or Medicine in 1953. Krebs later became a professor at the University of Oxford, leading several research studies in cell metabolism. He was knighted in 1958 for his services in science and published several papers until 1967 when he retired. Krebs remained scholarly even after his retirement, participating in more than one hundred scientific papers until he died in 1981 in Oxford.

Life and achievements

Early life

Hans Adolf Krebs was born on August 25, 1900, in Hildesheim, Germany, in a home that could be characterized as an intellectually charged one. His father, Georg Krebs, was a renowned ear, nose, and throat surgeon, while his mother, Alma Davidson Krebs, was of Jewish-Silesian origin. He had a sister, Elizabeth, who was older than him, and a brother, Wolfgang, who was younger. Krebs was academically inclined right from childhood and joined the Gymnasium Andreanum school in Hildesheim. His learning was interfered with when he was drafted into the German Army in September 1918 during the last stage of WWI. In April 1919, he took an emergency high school examination and received high scores, which he thought may have been because of sympathetic grading. After the war, Krebs started attending the University of Göttingen in December 1918, following in his father's footsteps and choosing the course of medicine. His interest in science, especially biochemistry, developed during his university education at some institutions, such as the University of Freiburg and the University of Berlin. He began his scientific work at an early age, and in 1923, he published his first scientific paper titled ''A Histological Method for Staining Tissues.'' He received his M.D. in 1925 from the University of Hamburg, and although he did some clinical work for a short period, he switched to biochemical research. This was the starting point of a career that would later bring an absolute change in the biochemical and metabolism cycles.

Legacy

Hans Krebs is best known for his findings in biochemistry, specifically in the metabolic cycles that revolutionized energy production among living organisms. Krebs's discovery of the urea cycle in 1932 and the citric acid cycle in 1937 offered basic knowledge regarding cell metabolism. The citric acid or Krebs cycle became one of the most significant biological processes vital in cellular respiration, converting food to energy. He was awarded the Nobel Prize in Physiology and Medicine in 1953. The fact that the cycle was able to articulate how organisms can metabolize nutrients to energy cemented Krebs's legacy in science. Krebs' achievements are not limited to his Nobel Prize-helpful work. He also co-discovered the glyoxylate cycle, a process similar to the citric acid cycle in plants and bacteria, thus proving his impact on animal and plant physiology. He is remembered for several awards, including the Sir Hans Krebs Prize in biochemistry, which the Society of Friends of Hannover Medical School offers. Furthermore, his work remains pertinent in areas like cancer and metabolic diseases, which is why Krebs is a giant in medical research. The University of Sheffield, where Krebs was employed for many years, even set up the Krebs Institute in 1988 for biochemical research across the disciplines. The Krebs Institute continues to inspire future scientists.

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Hans Adolf Krebs Legacy

By Confinity Heritage Editorial · 2026-04-23 · 6-minute read

Quiet tools, not a toolbar.

Hans Adolf Krebs

Aug 25, 1900

Nov 22, 1981

Life and achievements

Early life

Legacy

More legacies to read

Hans Adolf Krebs

Aug 25, 1900

Nov 22, 1981

Life and achievements

Early life

Legacy

More legacies to read