How do the different shapes of proteins, such as helices and globular forms, contribute to their function?

• A. Protein shapes are irrelevant to their function.
• B. Only globular proteins are functional; other shapes are structural.
• C. Different shapes allow proteins to perform a variety of functions, such as structural support and enzymatic activity.
• D. All protein shapes serve the same function, regardless of their form.

Answer: (C)