Question

Which minimal structure level enables proteins to function as enzymes?

• A. Primary
• B. Secondary
• C. Tertiary
• D. Quarternary

Answer 1

The correct option is C Tertiary

There are four levels of protein structures, namely primary, secondary, tertiary and Quaternary. The tertiary structure is a three dimensional structure of the protein. Only if a protein is correctly folded into tertiary structure, will it have biological activity. The tertiary structure enables proteins to function as enzymes. The function of an enzyme depends on its tertiary structure. If the tertiary structure is disrupted, the enzyme becomes inactive.

Thus, the correct answer is option C.