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Questions and Answers
Which type of haemoglobin is present in the highest percentage in adults?
Which type of haemoglobin is present in the highest percentage in adults?
- Haemoglobin A1 (correct)
- Foetal Haemoglobin
- Haemoglobin A2
- Haemoglobin with Delta type subunits
How many haem groups are present in Haemoglobin A1?
How many haem groups are present in Haemoglobin A1?
- 2
- 4 (correct)
- 1
- 3
Which type of haemoglobin has two Alpha type and two Gamma type subunits?
Which type of haemoglobin has two Alpha type and two Gamma type subunits?
- Haemoglobin A1
- Haemoglobin with Delta type subunits
- Foetal Haemoglobin (correct)
- Haemoglobin A2
What is the state of the iron atom when it associates with O2?
What is the state of the iron atom when it associates with O2?
What happens to the shape of other subunits when the haem group in the 'relaxed' state binds to oxygen?
What happens to the shape of other subunits when the haem group in the 'relaxed' state binds to oxygen?
Which of the following conditions would cause a leftward shift in the haemoglobin-oxygen dissociation curve?
Which of the following conditions would cause a leftward shift in the haemoglobin-oxygen dissociation curve?
What effect does an increase in 2-3 DPG levels have on the haemoglobin-oxygen dissociation curve?
What effect does an increase in 2-3 DPG levels have on the haemoglobin-oxygen dissociation curve?
Which of the following conditions would cause a decrease in the affinity of haemoglobin for oxygen?
Which of the following conditions would cause a decrease in the affinity of haemoglobin for oxygen?
What is the role of increased CO2 in shifting the curves?
What is the role of increased CO2 in shifting the curves?
Which molecule interacts with amino acids on b chains and destabilizes the interaction of hemoglobin with O2?
Which molecule interacts with amino acids on b chains and destabilizes the interaction of hemoglobin with O2?
What effect does altitude training have on 2-3-Diphosphoglycerate levels?
What effect does altitude training have on 2-3-Diphosphoglycerate levels?
How does an increase in 2,3-diphosphoglycerate (2,3-DPG) affect oxygen release by hemoglobin?
How does an increase in 2,3-diphosphoglycerate (2,3-DPG) affect oxygen release by hemoglobin?
What effect does an increase in temperature have on the haemoglobin-oxygen dissociation curve?
What effect does an increase in temperature have on the haemoglobin-oxygen dissociation curve?
How does a shift in the oxygen-hemoglobin dissociation curve relate to hypoxia?
How does a shift in the oxygen-hemoglobin dissociation curve relate to hypoxia?
Which form of carbon dioxide is the most abundant in the blood?
Which form of carbon dioxide is the most abundant in the blood?
When carbon dioxide (CO2) enters red blood cells (RBCs), what percentage of it forms compounds with hemoglobin?
When carbon dioxide (CO2) enters red blood cells (RBCs), what percentage of it forms compounds with hemoglobin?
Which enzyme catalyzes the formation of bicarbonate and H+ from carbon dioxide in the red blood cells?
Which enzyme catalyzes the formation of bicarbonate and H+ from carbon dioxide in the red blood cells?
How much carbon dioxide is picked up through capillaries in the blood?
How much carbon dioxide is picked up through capillaries in the blood?
Which ion enters the cell down its concentration gradient during the chloride shift?
Which ion enters the cell down its concentration gradient during the chloride shift?
What is the product of the reaction between bicarbonate and hydrogen ions?
What is the product of the reaction between bicarbonate and hydrogen ions?
What triggers the release of hydrogen ions from hemoglobin in the alveoli which helps in unloading carbon dioxide (CO2)?
What triggers the release of hydrogen ions from hemoglobin in the alveoli which helps in unloading carbon dioxide (CO2)?
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