Which of these changes cause a rightward shift in the oxygen-haemoglobin dissociation curve?W. An increase in arterial PCO2X. An increase in temperatureY. An increase in 2'3-BPG in red blood cellsZ. An increase in plasma pHSelect one:O a. if only W, X and Y are correctb. if only W and Y are correctO c. if only X and Z are correctO d. if only Z is correctO e. if all are correct Carbon dioxide can be transported in the blood as:W. bicarbonate ionX. 2,3-diphosphoglycerate (DPG)Y. CO2 directly dissolved in the plasmaZ. carbon monoxideSelect one:O a. if only W, X and Y are correctO b. if only W and Y are correctO c. if only X and Z are correctO d. if only Z is correctO e. if all are correct

The relationship between partial pressure of oxygen an amount of oxyhaemoglobin formed or…

Answered: Which of these changes cause a…

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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1. Which of the following would be most affected by a decrease in the affinity of hemoglobin for oxygen?A. Arterial PO2B. Arterial percent oxyhemoglobin saturationC. Venous oxyhemoglobin saturationD. Arterial PCO2 2. The chemoreceptors in the medulla are directly stimulated byA. CO2 from the bloodB. H+ from the bloodC. H+ in cerebrospinal fluid that is derived from blood CO2D. Decreased arterial PO2 3. Which of the following occur(s) during hypoxemia?A. Increased ventilationB. Increased production of 2.3-DPG C. Increased production of erythropoietinD. All of the choices
Which of the following scenariosare correct?Select all that apply A. High levels of PCO2will cause loading of O2ontohemoglobin. B. An increase in pH will causeO2to unload from hemoglobin. C. High PO2levels will increase saturation of Hb with O2. D. An increase in bodytemperature will cause O2to unload from hemoglobin.
you travel and the town your at is at 11,000 ft and the atmospheric pressure is 522 mmHg. a. Your cardiac output would go down b. you would be inhibiting the production of erythtopoietin c. the pressure of CO2 in the air you breathe would be arond 85 mmHg d. the partial pressure of O2 in the air you breathe would be around 109 mmHg
In regards to oxygen transport which of the following are true? A. 98.5% is transported in the blood bound to iron on the heme unit. B. 1.5% is transported in the blood bound to iron on the heme unit. C. 1.5% is transported in the blood bound to the white blood cells. D. 98.5% of transported in the blood bound to the white blood cells. Choose the correct answer
Most of the CO2 is transported through the bloodstream as…
One of the following is NOT correct regards haptoglobin A. is a strong acute-phase protein, increases 1000-folds shortly after inflammation B. is α2-glycoprotein C. Prevents iron loss through the kidneys D. is decreased in liver disease and haemolytic anemia E. None of the above
During exercise your pCO2 levels rise to 50 mm Hg while your pO2 levels drop to 80 mm Hg. Your peripheral chemoreceptors will be primarily sensitive to: A the increase in pCO2 B the decrease in pO2 C both the increase in pCO2 and decrease in pO2 D the increase in pCO2 and resulting increase in MAP E the decrease in pO2 and resulting increase in MAP
The steep part of the O2-Hb dissociation curve... a. is where CO2 unloading occurs at the tissue cells b. is where the PO2 is high (>90mmHg) c. is where the oxyhemoglobin is high (>90 % saturated) d. is where O2 unloading occurs at the tissue cells
In order for oxygen to be transported an arterial blood it can a. All answers are correct b. attached to hemoglobin and float freely in the plasma c.attached to bicarbonate d. attached to hemoglobin e.float freely in the plasma
Oxygen bars are beneficial at sea level to a. all individuals if the flow is to 2L per minute with 30% oxygen in the gas b. all individuals if the flow is about 3L per minute c. No one unless you have a pathology making your O2 hemoglobin saturation low to begin with d. Everyone regardless of the flow
Which of the following statements regarding hemoglobin (Hb) saturation are true? a. On top of Everest Hb is less than 20% saturated b. A leftward shift of the Hb-O2 dissociation curve causes more O2 to be off-loaded from Hb at any given PO2 c. Athletes competing at sea level should breathe 100% O2 to increase Hb saturation d. More than one of the above are correct
Sequence of Events Pulmonary Circulation Blood follows a specific route as it circulates through the lungs. Identify this path by placing the numbers 1 through 10 in the spaces provided. (Hint: Begin with the right ventricle.) A. Left atrium B. Venules C. Arterioles D. Lobar arteries in the lungs E. Pulmonary vein F. Veins G. Right ventricle H. Pulmonary arteries I. Lung capillaries

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