Final answer:
Yes, a substrate binding the appropriate enzyme is an example of quaternary structure.
Step-by-step explanation:
Yes, a substrate binding the appropriate enzyme is an example of quaternary structure. Quaternary structure refers to the arrangement of multiple protein subunits in a complex. In the case of enzymes, they often consist of multiple subunits that come together to form a functional enzyme. When a substrate binds to the enzyme at the active site, it can induce a conformational change in the enzyme's quaternary structure, allowing for catalysis to occur.