Organic Chemistry

posted by .

Hemoglobin (Hb) in the blood absorbs oxygen to form oxyhemoglobin [Hb(O2)2], which transports oxygen to the cells. The equilibrium can be generally represented by the following
(though it is actually composed of a series of equilibria in which Hb binds from between 1 and 4 O2 molecules per unit depending on the partial pressure of O2.) The cells consume oxygen, producing water and CO2 as a result of cellular respiration. While de-oxyhemoglobin has alower affinity for CO2 than for O2 it transports CO2 from the tissues back to the lungs. In addition, Hb has a much higher affinity for CO than for O2.

Hb + 2O2(gas) <==> Hb(O2)2

Normal blood pH is about 7.4. Under metabolic stress a situation known as acidosis can result in which the pH of the blood drops. This results in a shift of the above equilibrium to the left. Give an explanation for each of the following observations based upon the principles of equilibrium.

(a) Free hemoglobin readily picks up O2 in the lungs

(B) Oxyhemoglobin releases O2 to the tissues

(C.) A person is hyperventilating, his/her dissolved CO2 levels rise in the blood, what effect will this have on O2 transport to the tissues? Why?

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Chemistry

    a) An equilibrium exists between three chemical species in the blood , Hemoglobin, oxygenated hemoglobin and oxygen. Using the symbols Hb for hemoglobin , O2 for oxygen and HbO2 for oxygenated hemoglobin write out the equilibrium reaction. …
  2. Chemistry

    Hemoglobin (Hb) in the blood absorbs oxygen to form oxyhemoglobin [Hb(O2)2], which transports oxygen to the cells. The equilibrium can be generally represented by the following (though it is actually composed of a series of equilibria …
  3. science

    2. Which of the following is responsible for carrying nutrients to and waste from the body’s cells?
  4. HELP PLSS SCIENCE

    2. Which of the following is responsible for carrying nutrients to and waste from the body’s cells?
  5. chemistry

    hemoglobin is the protein that transports O2 through the blood from the lungs to the rest of the body. in doing so, each molecule of hemoglobin combines with four molecules of O2. if 1.00 g of hemoglobin combines with 1.53 mL of O2 …
  6. Science-3 question

    1. Which of the following is not a function of the circulatory system?
  7. Plz, check my answers.

    1. Which of the following is not a function of the circulatory system?
  8. Science/Health

    2. Which of the following explains why the heart is organized so that it pumps blood to two different locations?
  9. Living a Healthy Life

    Blood pressure is a measure of A. oxygen levels in the blood. B. the ratio of red blood cells to white blood cells. C. how hard the heart is working. D. the pressure exerted by hemoglobin against the vascular walls. D.
  10. Living a Healthy Life

    Blood pressure is a measure of  A. oxygen levels in the blood.  B. the ratio of red blood cells to white blood cells.  C. how hard the heart is working.  D. the pressure exerted by hemoglobin against the vascular walls.  D.

More Similar Questions