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3. a. The figure below shows a llama, a relative of the camel. One amino acid in camel haemoglobin ß subunits has been replaced by a different amino acid in llama haemoglobin ß subunits. Llamas live at high altitudes and camels live at low altitudes. At high altitudes the partial pressure of oxygen is low. The figure shows dissociation curves for llama haemoglobin and camel haemoglobin. 100 llama 80 camel saturation of 60- haemoglobin with oxygen (%) 40 20 4 6. 8 10 12 14 16 partial pressure of oxygen (kPa) (i) What is the partial pressure of oxygen that results in a saturation of 50% in llama and camel haemoglobin? (ii) Explain why it is important for the survival of the llama that the llama haemoglobin dissociation curve is to the left of the camel haemoglobin dissociation curve. b. Complete the table regarding the affinity of oxygen in myoglobin and haemoglobin. In the blank, write “increase the affinity", “decrease the affinity" or “no change in affinity". Myoglobin Haemoglobin A decrease in the partial pressure of CO2 in the lungs An increase in the BPG level

3. a. The figure below shows a llama, a relative of the camel. One amino acid in camel haemoglobin ß subunits has been replaced by a different amino acid in llama haemoglobin ß subunits. Llamas live at high altitudes and camels live at low altitudes. At high altitudes the partial pressure of oxygen is low. The figure shows dissociation curves for llama haemoglobin and camel haemoglobin. 100 llama 80 camel saturation of 60- haemoglobin with oxygen (%) 40 20 4 6. 8 10 12 14 16 partial pressure of oxygen (kPa) (i) What is the partial pressure of oxygen that results in a saturation of 50% in llama and camel haemoglobin? (ii) Explain why it is important for the survival of the llama that the llama haemoglobin dissociation curve is to the left of the camel haemoglobin dissociation curve. b. Complete the table regarding the affinity of oxygen in myoglobin and haemoglobin. In the blank, write “increase the affinity", “decrease the affinity" or “no change in affinity". Myoglobin Haemoglobin A decrease in the partial pressure of CO2 in the lungs An increase in the BPG level

Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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3. а. The figure below shows a llama, a relative of the camel. One amino acid in camel haemoglobin ß subunits has been replaced by a different amino acid in llama haemoglobin ß subunits. Llamas live at high altitudes and camels live at low altitudes. At high altitudes the partial pressure of oxygen is low. The figure shows dissociation curves for llama haemoglobin and camel haemoglobin. 100 llama 80- camel saturation of 60- haemoglobin with oxygen (%) 40- 20 0- 0 2 4 10 12 14 16 partial pressure of охуgen (kPa) (i) What is the partial pressure of oxygen that results in a saturation of 50% in llama and camel haemoglobin? (ii) Explain why it is important for the survival of the llama that the llama haemoglobin dissociation curve is to the left of the camel haemoglobin dissociation curve. b. Complete the table regarding the affinity of oxygen in myoglobin and haemoglobin. In the blank, write “increase the affinity", "decrease the affinity" or “no change in affinity". Myoglobin Haemoglobin A decrease in the partial pressure of CO2 in the lungs An increase in the BPG level
Transcribed Image Text:3. а. The figure below shows a llama, a relative of the camel. One amino acid in camel haemoglobin ß subunits has been replaced by a different amino acid in llama haemoglobin ß subunits. Llamas live at high altitudes and camels live at low altitudes. At high altitudes the partial pressure of oxygen is low. The figure shows dissociation curves for llama haemoglobin and camel haemoglobin. 100 llama 80- camel saturation of 60- haemoglobin with oxygen (%) 40- 20 0- 0 2 4 10 12 14 16 partial pressure of охуgen (kPa) (i) What is the partial pressure of oxygen that results in a saturation of 50% in llama and camel haemoglobin? (ii) Explain why it is important for the survival of the llama that the llama haemoglobin dissociation curve is to the left of the camel haemoglobin dissociation curve. b. Complete the table regarding the affinity of oxygen in myoglobin and haemoglobin. In the blank, write “increase the affinity", "decrease the affinity" or “no change in affinity". Myoglobin Haemoglobin A decrease in the partial pressure of CO2 in the lungs An increase in the BPG level
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