Proteins, complex carbohydrates, like starch, fats, and nucleic acids are the important biological macromolecules and are essential to life. You learned that many industries depend on macromolecules such as elastomers, fibers and plastics.
For the album by Vic Mignogna, see Metafiction (album). Metafiction is a literary device used self-consciously and systematically to draw attention to a work's status as an artifact. It poses questions about the relationship between fiction and reality, usually using irony and self-reflection.
Another prominent type of metafiction is literary parody or satire. Though such works don't always involve self-conscious narration, they are still classified as metafiction because they call attention to popular writing techniques and genres.