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WorksheetsOxygen Dissociation Curve (2)
Total questions: 10
Worksheet time: 5mins
With reference to the graph, which of the statements is true?
The blue arrow labelled A represents a shift to the left
The purple arrow labelled B represents a shift to the left
The red line that is not labelled represent the percentage saturation of oxygen with haemoglobin at different partial pressure of oxygen
Which of the following conditions will cause A to happen?
increase in partial pressure of carbon dioxide
decrease in partial pressure of carbon dioxide
increase in pH
decrease in temperature
What will shift A represent?
an increase in affinity of haemoglobin for oxygen
an increase in the affinity of haemoglobin for hydrogen carbonate ions
a decrease in the affinity of haemoglobin for oxygen
a decrease in the affinity of oxygen for haemoglobin
What CANNOT cause shift A to happen?
increase in partial pressure of carbon monoxide
increase in hydrogen ion concentration
increase in temperature
increase in levels of 2,3-DPG
The Bohr effect causes …………………………..
shift B to happen
shift A to happen
affinity of haemoglobin for oxygen to increase
affinity of haemoglobin for carbon dioxide to increase
With reference to the graph, which of the following statement is true?
more oxygen is released when blood moves from a resting tissue to a contracting skeletal muscle, compared to what is released when blood moves from a resting tissue to the lungs?
more oxygen is released when blood moves from a resting tissue to a contracting skeletal muscle, compared to what is released when blood moves from the lungs to a resting tissue?
deoxygenated blood is blood that has lost all it's oxygen
oxygenated blood is blood that has reached at least 90% saturation
The P50 is defined as the oxygen tension or partial pressure at which hemoglobin is 50% saturated. What will increased pH do to P50
It will increase P50
It will decrease P50
It will stabilize P50
It will double P50
The P50 is defined as the oxygen tension or partial pressure at which hemoglobin is 50% saturated. Which of the following statements is therefore true?
Fetal haemoglobin will have higher P50 compared to adult haemoglobin
High P50 indicates high affinity for oxygen
Myoglobin has lower P50 compared to adult haemoglobin
High P50 indicates low affinity for oxygen
What is the correct labels for the graphs
1 represents pH of 7,
2 represents pH of 7.5,
3 represents pH of 8
1 represents pH of 5,
2 represents pH of 5.5,
3 represents pH of 11
1 represents pH of 8.5,
2 represents pH of 8,
3 represents pH of 7.5
The P50 is defined as the oxygen tension or partial pressure at which hemoglobin is 50% saturated. Which graph represents an haemoglobin with the LOWEST P50
Graph 1
Graph 2
Graph 3
