According to this figure, the estimated p50 for Curve 3 is1231008060402020406080100PO2 (mmHg)Oxygen saturation (%) 2020406080100PO2 (mmHg)O a) 2 mmHgO b) 15 mmHgO c) 25 mmHgO d) 45 mmHge) 50 mmHg

Answered: According to this figure, the estimated…

Biochemistry

9th Edition

ISBN:9781319114671

Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Chapter1: Biochemistry: An Evolving Science

Section: Chapter Questions

Problem 1P

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Question

According to this figure, the estimated p50 for Curve 3 is
1
2
3
100
80
60
40
20
20
40
60
80
100
PO2 (mmHg)
Oxygen saturation (%)

20
20
40
60
80
100
PO2 (mmHg)
O a) 2 mmHg
O b) 15 mmHg
O c) 25 mmHg
O d) 45 mmHg
e) 50 mmHg

Expert Solution

Step 1

Oxygen tension at which hemoglobin becomes 50% saturated with oxygen is called as p50. Oxygen hemoglobin dissociation curve tells about the affinity of hemoglobin and oxygen. The curve is plotted between the hemoglobin saturation with oxygen versus partial pressure of oxygen. When the the affinity is high, low oxygen partial pressure is sufficient to saturate the hemoglobin shifting the curve towards left whereas when affinity is low, more partial pressure of oxygen is required to saturate the hemoglobin.

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