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 10 Views Q. This Enzyme was First Isolated and Purified in the Form of Crystals A. Urease B. pepsin C. Amylase D. Ribonuclease Answer: Urease