3. When muscles are more active physiological conditions change to affect oxygen binding to Hemoglobin.  Briefly describe the changes that occur and why this affects hemoglobin function.  Draw the shifted curve on the graph above. A. What physiological conditions change during exercise (levels of what molecules are increasing/decreasing)?

Which option best describes the following figure? Y (fraction saturation) 1.0 0.8 0.6 0.4 0.2 0.0 0 20 Oxygen Binding plot 40 60 p02 (torr) 80 100 A) Curve x = adult haemoglobin, curve y = fetal haemoglobin B) Curve x = myoglobin, curve y = haemoglobin C) Curve x = fetal haemoglobin, curve y = adult haemoglobin D) Curve x = fetal haemoglobin, curve y = myoglobin E) Curve x = adult haemoglobin, curve y - myoglobin

Select all answers that a

7. Draw a diagram of the heme complexes in deoxyhemoglobin and oxyhemoglobin (complete porphyrin structures are not required, but show all iron coordination positions).

2. Myoglobin’s O2 binding affinity is the same as that of ___ Hemoglobin. a   Tense b   Relaxed c   A combination of Tense and Relaxed because of positive cooperativity.

COVID-19 symptoms are assiociated with which of the following pathology? a. Alveolar destruction b. Impaired gas exchange c. Mucus production d. Fluid accumulation in the alveolus e. All of the above

To demonstrate an understanding of oxyhemoglobin binding, insert a word from the list in each blank to complete the statements. Not all terms will be used. increased A right shift of the oxy-hemoglobin curve signifies a affinity for oxygen. hold acidic A temperature will cause a right shift of the oxy- hemoglobin curve. basic A more pH than normal blood pH will cause a right shift higher of the oxy-hemoglobin curve. As a person exercises, their muscles give off heat which raises the temperature of the blood. This will cause hemoglobin to more oxygen at the cells. lower release decreased

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1. Carbon dioxide released during respiration can affect the % oxygen saturation of haemoglobin. Carbon dioxide reacts with water to form carbonic acid. Which statements below explains the effect of carbon dioxide on haemoglobin? A. The release of hydrogen ions causes the pH to rise, which reduces haemoglobin's affinity for охуgen. B. The release of hydrogen ions causes the pH to rise, which increases haemoglobin's affinity for oxygen. C. The release of hydrogen ions causes the pH to fall, which increases haemoglobin's affinity for охygen. D. The release of hydrogen ions causes the pH to fall, which reduces haemoglobin's affinity for охуgen. E. None of the above can explain the change. 2. The following events occur when carbon dioxide enters an erythrocyte in a capillary. 1. Hydrogencarbonate ions diffuse into the plasma from the red blood cell 2. Dissociation of carbonic acid 3. Carbon dioxide reacts with water forming carbonic acid 4. Chloride ions diffuse into red blood cell from…

In mammals, the developing fetus obtains O₂ from its mother's blood via the placenta. For this to occur... A. The fetal hemoglobin must have a higher Pso than the maternal hemoglobin B. The O₂ equilibrium curve of the fetal hemoglobin must be left-shifted with respect to the curve for the maternal hemoglobin C. The maternal hemoglobin must have a higher O₂ binding affinity than the fetal hemoglobin D. The O₂ carrying capacity of the fetal hemoglobin must be greater than that of the maternal hemoglobin E. None of the above