For the following questions consider this equation for hemoglobin – oxygen equilibrium. Hb + 4O2⥤ Hb(O2)4...
For the following questions consider this equation for hemoglobin – oxygen equilibrium. Hb + 4O2⥤ Hb(O2)4
Carbon Monoxide (CO) bonds to hemoglobin approximately 230 times stronger than oxygen. How would you increase the bonding oxygen to a patient with carbon monoxide poisoning?
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For the following questions consider this equation for
hemoglobin – oxygen equilibrium. Hb + 4O2⥤ Hb(O2)4...
1. a) Predict the effect of the following changes on the reaction in which SO3 decomposes...
1. a) Predict the effect of the following changes on the reaction in which SO3 decomposes to form SO2 and O2. 2 SO3(g) → 2 SO2 (g) + O2 (g) delta Ho = 197.78 kJ (1) Increasing the temperature of the reaction. (2) Increasing the pressure on the reaction. (3) Adding more O2 when the reaction is at equilibrium. (4) Removing O2 from the system when the reaction is at equilibrium. b) A person exposed to high levels of carbon...
Carbon monoxide (CO) is toxic because it binds more strongly to the iron in hemoglobin (Hb) than does oxygen (O2), as i...
Carbon monoxide (CO) is toxic because it binds more strongly to the iron in hemoglobin (Hb) than does oxygen (O2), as indicated by these approximate standard free-energy changes in blood: Hb+O2=HbO2 Delta G= -70 kJ/mol Hb+CO=HbCO Delta G= -80 kJ/mol Part A Estimate the equilibrium constant K at 298 K for the equilibrium HbO2+CO==HbCO+O_2
The binding of oxygen to hemoglobin in the blood involves the equilibrium reaction: Carbon monoxide replaces...
The binding of oxygen to hemoglobin in the blood involves the equilibrium reaction: Carbon monoxide replaces oxygen in oxygenated hemoglobin according to the reaction: HbO2(aq) + CO(aq)HbCO(aq) + O2(aq) a. If the normal pH of blood is controlled within a range of 7.35 to 7.45. If the pKw is 13.63, what is the normal range of [H+] and [OH- b. What would happen if oxygenated hemoglobin became too acidic? c. Use the reaction and associated equilibrium constants at body temperature...
Carbon monoxide (CO) is toxic because it binds more strongly to the iron in hemoglobin (Hb) than does oxygen (O2), as i...
Carbon monoxide (CO) is toxic because it binds more strongly to the iron in hemoglobin (Hb) than does oxygen (O2), as indicated by these approximate standard free-energy changes in blood: reaction A:reaction B:Hb+O2Hb+CO⟶⟶HbO2,HbCO, ΔG∘=−70 kJ/mol ΔG∘=−80 kJ/mol Part A Estimate the equilibrium constant K at 298 K for the equilibrium HbO2+CO⇌HbCO+O2
4. (6 pts) Hemoglobin (Hb) binds to both oxygen and carbon monoxide. When the carbon monoxide...
4. (6 pts) Hemoglobin (Hb) binds to both oxygen and carbon monoxide. When the carbon monoxide replaces the oxygen in an organism, the following reaction occurs: HbO2 + CO → HbCO + O2) At 37°C. K is about 200. When equal concentrations of HbO2 and HbCO are present, the effect of CO inhalation is fatal. Assuming Poe = 0.21 atm, what is Poo when [HBO3) - [HbCO)?
Dietary iron forms a 1:1 complex with hemoglobin (Hb), which is responsible for O2 transport in...
Dietary iron forms a 1:1 complex with hemoglobin (Hb), which is responsible for O2 transport in the body based on the following equation: Hb+4O2→Hb(O2)4 How many moles of oxygen could be transported by the hemoglobin complex formed from 6 mg of dietary iron? [ Anemia-A Limiting Reagent Problem? p. 172] Express your answer to two significant figures and include the appropriate units.
104 Homework 6 4. (15 points): Hemoglobin (Hb) is the main oxygen transport protein in the blood....
104 Homework 6 4. (15 points): Hemoglobin (Hb) is the main oxygen transport protein in the blood. Each hemoglobin molecule can transport four oxygen atoms at a time, one at each of its four iron-based binding sites. The binding of O2 to hemoglobin is a pH-dependent equilibrium, simplified as: Use Le Chatelier's Principle to answer the following questions: a) What form of hemoglobin, HbH" or Hb(Ojle, would be favored in the lungs? What form would be favored in the cells...
9. Carbon monoxide (CO) is toxic because it can displace oxygen (O2) from the iron in...
9. Carbon monoxide (CO) is toxic because it can displace oxygen (O2) from the iron in hemoglobin (Hgb) following the reaction: HgbO2 (s) + CO(g) + Hgbco (s) + O2 (g) AG®rx = -30. kl/mol A. Consider the following reactions involving hemoglobin, O2 and Co: Hgboz (s) + Hgb (s) + O2 (g) AG®rxn = 40. kJ/mol HgbCO (s) -- Hgb (s) + CO (6) AGºrx = ??? Using Hess's law, determine the free energy AG*rn (in kJ/mol) for the...
1. Carbon monoxide poisoning can happen because carbon monoxide has a higher affinity for hemoglo...
1. Carbon monoxide poisoning can happen because carbon monoxide has a higher affinity for hemoglobin than oxygen does. This can be seen by comparing the equilibrium constants for the two reactions Hb(a)+02()Hb02(aq) Hb(a)C(e) HbCO(aq) K 1.9x1012 K 1.1x1014 where Hb is hemoglobin. The actual reactions are more complicated since each hemoglobin can accept up to four oxygen molecules, but we will simplify it for this problem A concentration of about 12,500 parts per million of CO is considered highly lethal....
19.4. Reading and Interpreting the Oxygen-Hb Dissociation Figure (4 points) Refer to the oxygen-Hb dissociation figure...
19.4. Reading and Interpreting the Oxygen-Hb Dissociation Figure (4 points) Refer to the oxygen-Hb dissociation figure below to answer the following four questions. 4 points. a. Under normal, resting conditions, approximately what % of the hemoglobin is saturated with oxygen after it has passed through the gas exchange sites in the lungs? b. Under normal, resting conditions, approximately what % of the hemoglobin is still saturated with oxygen after it has passed through the gas exchange sites in the tissues?...
The binding of oxygen to hemoglobin in the blood involves the equilibrium reaction: Carbon monoxide replaces oxygen in oxygenated hemoglobin according to the reaction: HbO2(aq) + CO(aq)HbCO(aq) + O2(aq) a. If the normal pH of blood is controlled within a range of 7.35 to 7.45. If the pKw is 13.63, what is the normal range of [H+] and [OH- b. What would happen if oxygenated hemoglobin became too acidic? c. Use the reaction and associated equilibrium constants at body temperature...
4. (6 pts) Hemoglobin (Hb) binds to both oxygen and carbon monoxide. When the carbon monoxide replaces the oxygen in an organism, the following reaction occurs: HbO2 + CO → HbCO + O2) At 37°C. K is about 200. When equal concentrations of HbO2 and HbCO are present, the effect of CO inhalation is fatal. Assuming Poe = 0.21 atm, what is Poo when [HBO3) - [HbCO)?
104 Homework 6 4. (15 points): Hemoglobin (Hb) is the main oxygen transport protein in the blood. Each hemoglobin molecule can transport four oxygen atoms at a time, one at each of its four iron-based binding sites. The binding of O2 to hemoglobin is a pH-dependent equilibrium, simplified as: Use Le Chatelier's Principle to answer the following questions: a) What form of hemoglobin, HbH" or Hb(Ojle, would be favored in the lungs? What form would be favored in the cells...
9. Carbon monoxide (CO) is toxic because it can displace oxygen (O2) from the iron in hemoglobin (Hgb) following the reaction: HgbO2 (s) + CO(g) + Hgbco (s) + O2 (g) AG®rx = -30. kl/mol A. Consider the following reactions involving hemoglobin, O2 and Co: Hgboz (s) + Hgb (s) + O2 (g) AG®rxn = 40. kJ/mol HgbCO (s) -- Hgb (s) + CO (6) AGºrx = ??? Using Hess's law, determine the free energy AG*rn (in kJ/mol) for the...
1. Carbon monoxide poisoning can happen because carbon monoxide has a higher affinity for hemoglobin than oxygen does. This can be seen by comparing the equilibrium constants for the two reactions Hb(a)+02()Hb02(aq) Hb(a)C(e) HbCO(aq) K 1.9x1012 K 1.1x1014 where Hb is hemoglobin. The actual reactions are more complicated since each hemoglobin can accept up to four oxygen molecules, but we will simplify it for this problem A concentration of about 12,500 parts per million of CO is considered highly lethal....
19.4. Reading and Interpreting the Oxygen-Hb Dissociation Figure (4 points) Refer to the oxygen-Hb dissociation figure below to answer the following four questions. 4 points. a. Under normal, resting conditions, approximately what % of the hemoglobin is saturated with oxygen after it has passed through the gas exchange sites in the lungs? b. Under normal, resting conditions, approximately what % of the hemoglobin is still saturated with oxygen after it has passed through the gas exchange sites in the tissues?...
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