Question

Ornithine cycle was discovered by

• A. Krebs
• B. Henseleit
• C. Krebs and Henseleit
• D. Ornithine

Answer 1

The correct option is C Krebs and Henseleit

Ornithine cycle was discovered by Hans Krebs and Kurt Henseleit, 1932. Ornithine cycle helps in conversion of excess of amino acids into urea in liver. It takes place in five major steps. The extra proteins in the body are degraded by the process of deamination where the NH${}_2$ group is removed and it is converted into ammonium ions in the liver. The ammonium ions enter urea cycle and get converted into urea. The urea formed in liver is transported to kidney through circulation and finally gets excreted. So, the correct answer is 'Krebs and Henseleit'.