Haemoglobin molecule exhibits which structural organization of proteins?
Correct answer: D. Quaternary structure
- A. Primary structure
- B. Secondary structure
- C. Tertiary structure
- D. Quaternary structure
Explanation
Hemoglobin has a quaternary structure. It consists of two pairs of different proteins, designated the α and β chains.
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About Classification of Proteins
Proteins are classified by composition as simple, conjugated and derived proteins, and by shape as fibrous or globular proteins. The topic relates these classes to examples such as albumin, keratin, collagen, haemoglobin and casein, while distinguishing structural proteins from proteins with transport, catalytic or regulatory roles.
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