cellulase is an enzyme that breaks down cellulose. It does this by breaking the bonds between the glucose monomers that constitute this naturally occurring polymer. In practice is usually a mixture of several molecules acting together. To mix this metaphor, it could be a "wolf pack" of enzymes.
METAMIA is a free database of analogy and metaphor. Anyone can contribute or search. The subject matter can be anything. Science is popular, but poetry is encouraged. The goal is to integrate our fluid muses with the stark literalism of a relational database. Metamia is like a girdle for your muses, a cognitive girdle.