Hemoglobin is a protein that binds oxygen in the lungs for its transport through the circula tory system to other cells in the

Question

Hemoglobin is a protein that binds oxygen in the lungs for its transport through the circula tory system to other cells in the body The mechanism by which hemoglobin binds the oxy gen is similar to the way that enzymes bind their substrates Carbon monoxide acts as a high affinity competitive inhibitor to oxygen and prevents it from binding to hemoglobin One of the first treatments in cases of carbon monoxide poi soning is the direct and prolonged supply of oxygen which increases the concentration of oxygen in the lungs Which of the following statements best predicts the effect of increasing the concentration of oxygen after exposure to carbon monoxide A B C D Competitive inhibition will decrease because the proportion of the binding sites occu pied by the oxygen will increase There will be an increase in carbon monoxide binding because the affinity of hemoglo bin will increase Competitive inhibition will cease because oxygen will bind to carbon monoxide and stop the competitive inhibition The bonds between the R groups in the binding site of the hemoglobin will become de natured decreasing its affinity

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