Entity Beans

Stated another way, (i) what an entity is can oidy bo defined relative to all other entities that ajg (in a, static, bean-counting, manner) (ii) what an entity does can only be defined relative to what all other entities do (which depends on how they are all interconnected ) (iii) what fundamental role an entity plays in the world can only be defined relative to the roles that all other entities play in the world (which depends on the role all entities play on each level of the hierarchy). 

Many enzymes were purified from a large number of sources, but it was J. B. Sumner who was the first to crystallize one. The enzyme was urease from jack beans. For his travail, which took over 6 years (1924-1930), he was awarded the 1946 Nobel prize. The work demonstrated once and for all that enzymes are distinct chemical entities. 

---