Oxy-haemoglobin dissociates into oxygen and deoxy-haemoglobin at

Options

A. low `O_(2)` pressure in tissue
B. high `O_(2)` pressure in tissue
C. equal `O_(2)` pressure Inside and outside tissue
D. all times irrespective of `O_(2)` pressure

Answer

A

Explanation

Oxyhaemoglobin dissociates into oxygen and deoxyhaemoglobin at low `O_(2)` pressure in tissues. At high `O_(2)` pressure in tissues. At high `O_(2)` pressure in tissues, the oxyhaemoglobin will not dissociate into `O_(2)` and haemoglobin and not carry back `CO_(2)` lungs.