Which of the following does not shift the oxy-haemoglobin dissociation curve to the right?1. increased pH2. increased carbon dioxide3. increased temperature4. increased 2,3 -DPG
Question
Which of the following does not shift the oxy-haemoglobin dissociation curve to the right?1. increased pH2. increased carbon dioxide3. increased temperature4. increased 2,3 -DPG
Solution
The oxy-haemoglobin dissociation curve shifts to the right in response to conditions that promote the release of oxygen from haemoglobin. These conditions include increased carbon dioxide, increased temperature, and increased 2,3-DPG.
However, an increased pH does not shift the curve to the right. Instead, it shifts the curve to the left. This is because an increase in pH (which means a more alkaline or less acidic environment) promotes the binding of oxygen to haemoglobin, not its release.
So, the answer to your question is 1. increased pH.
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