"A receptor protein is like a key lock, very specific and only the right key can use it "
" A receptor protein is like the "eyes and ears" of a cell. When certain hormones interact with the receptor or bind to it, the receptor tells the cells what to do."
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.