Zoology - Breathing and Exchange of Gases Question with Solution | TestHub
ZoologyBreathing and Exchange of GasesHuman Respiratory SystemEasy2 minPYQ_2020
ZoologyEasysingle choice
Identify the labelings i, ii, and iii in the hemoglobin-oxygen dissociation curve.
Options:
Answer:
D
Solution:
The binding of oxygen and hemoglobin produces a characteristic S-shaped curve relating to pO2 to Hb-O2 saturation. The graph explains the saturation of oxygen with hemoglobin. At rest, approximately 25% of the available O2 is extracted by the tissues, resulting in a venous saturation of 75% and a pO2 of around 5.3 kPa. The P50 is the pO2 at which the Hb-O2 saturation is 50%, normally around 3.5 kPa.
Stream:NTA_ABHYAS_NEETSubject:ZoologyTopic:Breathing and Exchange of GasesSubtopic:Human Respiratory System
⏱ 2mℹ️ Source: PYQ_2020
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