Home » This Enzyme was First Isolated and Purified in the Form of Crystals Enzymology MCQs This Enzyme was First Isolated and Purified in the Form of Crystals January 22, 2022 7 Views Q. This Enzyme was First Isolated and Purified in the Form of Crystals A. Urease B. pepsin C. Amylase D. Ribonuclease Answer: Urease