Question

multiple choice question
which role is not played by proteins in extant organisms?

• provide structure
• catalyze reactions
• store information
• enzymatic activities

Explanation:

• Structural proteins (e.g., collagen, keratin) provide cellular/organismal structure.
• Enzymes (a type of protein) catalyze reactions and carry out enzymatic activities.
• Genetic/biological information storage is the role of nucleic acids (DNA/RNA), not proteins.

Answer:

C. Store information