Question

The important tertiary structures of proteins are
(1) $\alpha$-helix
(2) globular
(3) $\beta$-pleated
(4) fibrous

• A. 1, 2 and 3 are correct
• B. 1 and 2 are correct
• C. 2 and 4 are correct
• D. 1 and 3 are correct

Answer 1

Answer: (C)

Globular and fibrous are important tertiary structures. (However, $\alpha$-helix and $\beta$-pleated are the secondary structures).