At pH 7.2 and 10 Torr oxygen partial pressure, the extent of O₂ binding is · ABC26IN0304
Subject: Inorganic Chemistry · Chapter: Bioinorganic Chemistry · Topic: Bioinorganic – General · Exam: GATE 2005-2021 · Marks: 2 · Difficulty: Easy
At pH 7.2 and 10 Torr oxygen partial pressure, the extent of $\mathrm{O}_{2}$ binding is
(a)high for both haemoglobin and myoglobin
(b)high for haemoglobin and low for myoglobin
(c)high for myoglobin and low for haemoglobin
(d)low for both haemoglobin and myoglobin
Answer
Answer: C ✓ checked by 4AB · confidence high
Explanation
At 10 Torr (tissue pO₂) myoglobin (P₅₀ ≈ 3 Torr) is largely saturated while haemoglobin (P₅₀ ≈ 26 Torr) is not (c).
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