Question

Biocatalysts were found accidently in Yeast extract by

• A. Sumner
• B. Kuhne
• C. Buchner
• D. Pasteur

Answer 1

Answer: (C)

Buchner

Biocatalysts were found accidentally in yeast extract by Buchner in 1897. He prepared a yeast extract and added sugar solution to it. After sometime he noticed the alcohol formation in the extract which was a sign of fermentation which took in presence of enzyme. Later on, Sumner crystallized an enzyme known as urease and reported that all enzymes are protein.

So, the correct answer is option C.