Concept explainers
To determine:
Does injecting synthetic EPO is differing, in a fundamental way from transfusing red blood cells taken from one’s own blood.
Introduction:
Erythropoietin is a naturally occurring protein hormone and is produced in the body by the kidneys and is used to regulate red blood cell production. Patients suffering from anemia are legally allowed to use this medically.
To determine:
How different training methods affect the fairness of sporting competitions.
Introduction:
The written and unwritten rules are the building blocks of fair play and they should be followed on the field as well as during training also. Fair sports competitions respect sports, and unfair practices must not occur in competitions.
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Biology: Life on Earth with Physiology (11th Edition)
- Referring to the loading and unloading of oxygen from hemoglobin (as illustrated in the figure), which of the following statements is correct? Oxygen Dissociation Curve.png Group of answer choices When a person in ventilating at rest, 75% of hemoglobin is still oxyhemoglobin The percent saturation of hemoglobin is higher at higher partial pressures of oxygen A decrease in the pH of the blood would promote unloading oxygen from the hemoglobin All of these are correctarrow_forwardWith the appearance of strong oxidizers in blood in erythrocytes one of the following substances is formed first of all: 1. carbhemoglobin 2. carboxyhemoglobin 3. oxyhemoglobin 4. methemoglobin 5. deoxyhemoglobinarrow_forwardWhat are the physiological advantages in sport due to using erythropoietin? What are the physiological consequences of using erythropoietin? Give an example of a Professional Athlete that used erythropoietin (Armstrong does not count).arrow_forward
- Abu was admitted in the hospital due to anemia resulting from complication of chronic kidney disease. He was treated with recombinant human erythropoietin (epo) twice daily, and his blood was sampled for monitoring a) What is the importance of plotting the plasma level vs time graph? How does the graph relate to the pharmacological activity of a given medication? In your opinion, what time interims should blood sample be taken to anticipate both drug reactions and side effects?arrow_forwardTrue or false Chemically-linked hemoglobin moelcules can stay in the blood for as long as 72 hrs. Cow hemoglobin can be safelty used by humans. Free hemoglobin produces vasoconstruction of blood vesselsand increases blood pressure in patients.arrow_forwardWhich of the following factors play a role in theoxygen–hemoglobin saturation/dissociation curve?a. temperatureb. pHc. BPGd. all of the abovearrow_forward
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- When a person develops a fever, which of the following statements hemoglobin saturation are correct? - Modify the structure of hemoglobin and decrease its affernity for O2 - Can shift the O2-hemoglobin dissociation curve to the right - Decrease O2 unloading occurs in the tissue - Modify the structure of hemoglobin and increase its affernity for O2 - Can shift the O2 hemoglobin dissociation curve to the left - Enhance O2 unloading occurs in the tissuearrow_forwardWhich of the following statements is FALSE regarding a rightward shift in the hemoglobin-oxygen dissociation curve? A) Affinity for oxygen is increased. B) Oxygen loading onto the hemoglobin is increased. C) Hemoglobin is more saturated at a given PO2. D) It can be caused by a decrease in temperature. E) It can be caused by a decrease in blood pH.arrow_forwardWhich of the following statements is FALSE regarding a leftward shift in the hemoglobin-oxygen dissociation curve? A) Affinity for oxygen is increased. B) Oxygen loading onto the hemoglobin is increased. C) Hemoglobin is more saturated at a given PO2. D) It can be caused by a decrease in temperature. E) It can be caused by a decrease in blood pH.arrow_forward
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