If you have a P-O2 of 100 mm Hg in the alveoli and a P-O2 of 40 mm Hg in the blood, then: Group of answer choices oxygen moves from the blood to the lungs carbon dioxide moves from the blood to the lungs carbon dioxide moves from the lungs to the blood oxygen moves from the lungs to the blood water moves from the lungs to the blood
Added by George A.
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In this case, the P-O2 in the alveoli is 100 mm Hg, and the P-O2 in the blood is 40 mm Hg. Show more…
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Concentrations of oxygen and carbon dioxide in the air and in the body are measured as "partial pressure", which is written as pO2 and pCO2. The units to measure partial pressure are "mmHg" which is pronounced "millimeters of mercury", a standard unit for measuring the pressure of gases. Below is a data table showing the pO2 and pCO2 in the lungs and in the blood. Air inhaled into lungs: 150 mmHg pO2, 0 mmHg pCO2 Blood flowing into lungs: 100 mmHg pO2, 40 mmHg pCO2 Knowing that oxygen and carbon dioxide always move by simple diffusion: (a) Which way will oxygen move? (from the lungs into the blood / from the blood into the lungs / both ways equally)? (b) Which way will carbon dioxide move? (c) Explain why you answered (a) and (b) the way you did.
Anand J.
Complete each statement and then place them in the correct order, starting with blood in the alveolus. Assume normal, non-diseased, sea level conditions. As RBCs pass through the they experience oxygen unloading and increasing carbonic acid conversion. A red blood cell arrives in the where it is exposed to a PO2 of 104 mm Hg. Returning to the inferior vena cava, the blood is known to have a PCO2 of . After passing through the systemic capillary, of the binding sites for oxygen are now bound with oxygen. Blood enters the pulmonary vein with close to of the binding sites for oxygen saturated. Arriving at the arterial end of the tissue capillaries, the blood PO2 is . Passing through the pulmonary artery, the PO2 is approximately .
Madhur L.
Classify the items into the correct category. Blood P(O₂) increases from 40 to 104 mmHg Blood P(CO₂) increases from 40 to 45 mmHg Alveolar Gas Exchange Exchange of respiratory gases between alveoli in lungs and blood in pulmonary capillaries Blood P(O₂) decreases from 95 to 40 mmHg Blood P(CO₂) decreases from 45 to 40 mmHg Systemic Gas Exchange Exchange of respiratory gases between tissue cells and blood in systemic capillaries
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