hard · MCAT

How does the Bohr effect facilitate the delivery of oxygen to rapidly exercising skeletal muscle?

  1. The presence of 2,3-BPG in the lungs increases the loading of oxygen onto hemoglobin
  2. The low pH and high CO₂ in the tissue shift the hemoglobin dissociation curve to the left, increasing affinity
  3. The low pH, high CO₂, and high temperature in the tissue shift the curve to the right, decreasing affinity
  4. The high temperature and high pH in the tissue shift the curve to the right, increasing affinity

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