Wöhler revolutionized biology through his demonstration that biological molecules are governed by the ordinary laws of physics and chemistry. He demonstrated this principle by
A) synthesizing urea in the laboratory from ammonium cyanate.
B) developing techniques for isolating, purifying, and analyzing subcomponents of cells.
C) defining the laws of heredity.
D) discovering active agents in cell extracts that were specific biological catalysts that have since come to be called enzymes.
E) inventing mass spectrometry which is commonly used to determine the size and composition of individual proteins.
Answer: A
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