Which of the following is false regarding to haemoglobin?
Correct answer: D. Each haem in haemoglobin can bind to four O2 molecules
- A. It is a globular protein
- B. It contains organic haem group and inorganic Fe +
- C. Abundantly found in RBCs
- D. Each haem in haemoglobin can bind to four O2 molecules
Explanation
Option D is false. Each haem group in haemoglobin can bind to only one oxygen molecule (O2). Hemoglobin is composed of four protein subunits, each containing a haem group. Therefore, a single hemoglobin molecule can bind up to a maximum of four oxygen molecules.
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