Which Statement Regarding Haemoglobin Is Correct

question 251

Multiple Choice

Which statement regarding haemoglobin is correct?

• A) It combines preferentially with O₂ over any other molecules.
• B) When combined with carbon dioxide, it is known as oxyhaemoglobin.
• C) It plays a critical role in determining the amount of O₂ that is exchanged between alveoli and blood, because it acts as a storage depot, removing dissolved O₂ from the blood and thereby keeping PO₂ low and allowing net diffusion of O₂ to continue until the haemoglobin is completely saturated.
• D) It combines preferentially with CO₂ when partial partial pressure of O₂ is high in arterial blood.

Describe the process and limitations of CNS repair and regeneration.

Explain the functions of microglia, mitochondria, lysosomes, and the role of Schwann cells in nerve regeneration.

Grasp the basic structure of atoms and the chemical composition of cells.

Understand the basic principles of nucleotide base pairing and its relevance to DNA and RNA.

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