Introduce the concept of proteins having different shapes and functions with this coloring worksheet! Each protein has a key to cover different chains different coloring. Encourage students to use different colors for each protein, to reinforce the structures are all different. After coloring I had students look up their functions (online) and once all students are done have a discussion about the 6 functional groups of proteins in the body: Transport, Structural, Movement, Regulatory, Immune Sy