If you know about the induced-fit hypothesis of enzyme action, you'll enjoy any of these wry biochemistry humor gifts. Make others do a double-take about where they fit in the greater scheme of life with a dose of enzyme-substrate attitude!
If you go through life, wondering whether you are catalytic enough, you'll enjoy these gifts.
If you just want to show the transformational process inside, you'll enjoy any of these biochemistry attitude gifts featuring just that -- "Transformational Process Inside". It is especially helpful if you see yourself as a catalyst in life!
If you think deeply about enzymes, you'll follow the induced-fit model which notes that enzymes are rather flexible structures, with the active site continually reshaped by interactions with the substrate as the substrate interacts with the enzyme. As a result, the substrate does not simply bind to a rigid active site; the amino acid side chains which make up the active site are molded into the precise positions that enable the enzyme to perform its catalytic function. Now apply this model to life with any of these query gifts that asks the following key question: "In Life, Do You Follow The Induced-Fit Model?"
Of course, you could always ask this key question in life: "In Life, Are You The Enzyme Or The Substrate?" In enzymatic reactions, the molecules at the beginning of the process are called substrates, and the enzyme converts them into different molecules, called the products. So, you can consider the enzymes to be the molecules with catalytic properties, with the substrates being the molecules that are acted upon. With this logic, you'll enjoy any of these biochemistry / biology humor gifts that will make others wonder exactly what you are trying ask about!