
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN: 9780134580999
Author: Elaine N. Marieb, Katja N. Hoehn
Publisher: PEARSON
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How do each of the following Hb's affinity for O2: increase in pH; increase in temperature; increase in PCO2; increase in 2,3-DPG
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- Write the chemical equation in which CO2 is converted to HCO3- and H+. What enzyme catalyzes this reaction, and where in the blood is it found?arrow_forwardWhat are the three transport mechanisms of CO2? Which one is the main mechanism?arrow_forwardUsing the set of data that follows, calculate how many of themolecules of O2 that were used in aerobic catabolism by JuliusCaesar are in each liter of atmospheric air today. All valuesgiven are expressed at Standard Conditions of Temperature andPressure (see Appendix C) and therefore can be legitimatelycompared. Average rate of O2 consumption of a human maleduring ordinary daily activities: 25 L/h. Number of years afterhis birth when Caesar was mortally stabbed near the RomanForum: 56 years. Number of liters of O2 per mole: 22.4 L/mol.Number of moles of O2 in Earth’s atmosphere: 3.7 × 1019 mol.Number of molecules per mole: 6 × 1023 molecules/mol. Amountof O2 per liter of air at sea level (20°C): 195 mL/L. Be prepared tobe surprised! Of course, criticize the calculations if you feel theydeserve criticism.arrow_forward
- Kaitlin is hospitalized and the initial blood work indicates high levels of HCO3- in the blood and a pH of 7. 43, this would indicate she probably has: compensated metabolic alkolosis. compensated respiratory alkalosis . compensated respiratory acidosis. uncompensated metabolic acidosis. may as well have the sheet pulled over his face because he's a goner.arrow_forwardSelect all that applyarrow_forwardIt has been shown recently that the African naked GLUT5-O Fructose mole-rat can withstand up to 18 min of complete anoxia (ab- sence of O2) in the presence of high levels of CO2 without ap- parent brain damage. The basis of its capacity to tolerate such unusual conditions is that the brain, heart, and liver in the mole- rat switch to fructose-driven glycolysis. In contrast to normal mice, these tissues in the naked mole-rat have high levels of GLUT5 specific for cellular uptake of fructose. The available pathways for breakdown of fruct ose for metabolic energy production are shown on the right. KHK stands for ketohexosekinase, an enzyme that is markedly upregulated in the mole-rat compared to normal mice. Conse- quently mice must metabolize fructose largely via hexokinase (HK). In the diagram ALDOB, ALDOA, etc. represent aldolase isozymes. KHK HK Fructose-6-P PFK Fructose-1-P Fructose-1,6-BP ALDOB ALDOC ALDOA ALDOC Glyceraldehyde DHAP GAЗP Glyc-3-P 3-PGA Lactate Pyruvate mouse naked…arrow_forward
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