which of the following conditions will favour the formation of carbaminohemoglobin in tissue level?

Options

A. Low `pCO_2`
B. Low temperature
C. High pO_2
D. High pCO_2

Answer

To determine which condition favors the formation of carbaminohemoglobin at the tissue level, we need to analyze the options given:

1. **Low partial pressure of CO2**: This condition would not favor the formation of carbaminohemoglobin because a low level of CO2 would lead to less binding of CO2 to hemoglobin.

2. **Low temperature**: Lower temperatures generally favor the formation of oxyhemoglobin rather than carbaminohemoglobin. Therefore, this condition is not favorable for carbaminohemoglobin formation.

3. **High partial pressure of O2**: A high level of oxygen would promote the formation of oxyhemoglobin instead of carbaminohemoglobin. Thus, this condition is also not favorable for carbaminohemoglobin formation.

4. **High partial pressure of CO2**: High levels of carbon dioxide in the tissues promote the binding of CO2 to hemoglobin, leading to the formation of carbaminohemoglobin. This is the correct condition that favors the formation of carbaminohemoglobin.

Based on the analysis above, the correct answer is:

**High partial pressure of CO2 (Option D)**.