Each of the following statements has 2 blanks . Mark the statement in which both the blanks can't be filled with the same data.

Options

A. The contraction of diaphragm causes......in the volume of thorax and the contraction of external intercostal muscles causes .... in the volume of thorax.
B. `pO_2` in deoxygenated blood of ….....mm Hg and `pCO_2` in Oxygenated blood is ....mm Hg.
C. About ………..% of carbon dioxide is carried by hemoglobin is carbaminhaemoglobin and solubility of carbon dioxide is. …..... times higher than that of oxygen.
D. High `pCO_2` shifts the oxygen dissociation curve to the …………and high pH shifts the oxygen dissociation curve to the ………… .

Answer

To solve the question, we need to analyze each of the four statements provided and determine if both blanks can be filled with the same data or if they require different data.

### Step-by-Step Solution:

1. **Statement Analysis**:
- **Statement 1**: Discusses the contraction of the diaphragm and external intercostal muscles, both of which increase the volume of the thorax.
- **Blank 1**: Volume of thorax with diaphragm contraction.
- **Blank 2**: Volume of thorax with external intercostal muscles contraction.
- **Conclusion**: Both blanks can be filled with "increases" or "expanded".

- **Statement 2**: Talks about the partial pressures of oxygen in deoxygenated blood and carbon dioxide in oxygenated blood.
- **Blank 1**: pO2 in deoxygenated blood.
- **Blank 2**: pCO2 in oxygenated blood.
- **Conclusion**: Both blanks can be filled with "40 mmHg".

- **Statement 3**: Refers to the percentage of carbon dioxide carried by hemoglobin as carbaminohemoglobin and the solubility of carbon dioxide compared to oxygen.
- **Blank 1**: Percentage of CO2 carried by hemoglobin.
- **Blank 2**: Solubility of CO2 compared to oxygen.
- **Conclusion**: Both blanks can be filled with "20-25%".

- **Statement 4**: Discusses how high pCO2 and high pH affect the oxygen dissociation curve.
- **Blank 1**: Effect of high pCO2 on oxygen dissociation curve.
- **Blank 2**: Effect of high pH on oxygen dissociation curve.
- **Conclusion**: These two effects are different; one shifts the curve to the left and the other shifts it to the right.

2. **Identifying the Statement**:
- From the analysis, we see that Statements 1, 2, and 3 can have the same data filled in both blanks. However, Statement 4 requires different data for each blank.

3. **Final Answer**:
- The statement in which both blanks cannot be filled with the same data is **Statement 4**.