The effect of `CO_(2)` concentration on dissociation of oxyhemoglobin was explained by

Options

A. G.S Carter
B. Yapp
C. William Hoar
D. Christian Bohr.

Answer

To answer the question regarding the effect of CO₂ concentration on the dissociation of oxyhemoglobin, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Context**: The question asks about the relationship between CO₂ concentration and the dissociation of oxyhemoglobin. Oxyhemoglobin is hemoglobin that is bound to oxygen.

2. **Identify the Key Concept**: The key concept here is the "Bohr effect," which describes how the binding and release of oxygen by hemoglobin is affected by the concentration of CO₂ and the pH of the blood.

3. **Explain the Bohr Effect**: According to the Bohr effect, an increase in CO₂ concentration (which leads to increased acidity due to the formation of carbonic acid) results in a decrease in the affinity of hemoglobin for oxygen. This means that as CO₂ levels rise, hemoglobin is more likely to release oxygen.

4. **Link to the Physiologist**: The Bohr effect was described by Danish physiologist Christian Bohr. He established that hemoglobin's oxygen-binding capacity is inversely proportional to both acidity (pH) and CO₂ concentration.

5. **Conclude with the Correct Answer**: Therefore, the correct answer to the question is Christian Bohr, as he is the one who explained the effect of CO₂ concentration on the dissociation of oxyhemoglobin.

### Final Answer:
The effect of CO₂ concentration on the dissociation of oxyhemoglobin was explained by Christian Bohr.

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