Respiratory adaptations · Physiology

Which adaptation enhances oxygen unloading in tissues during exercise?

  1. Leftward shift of the oxygen dissociation curve
  2. Increased hemoglobin affinity
  3. Rightward shift of dissociation curve
  4. Reduced core body temperature
Show answer and explanation

Correct answer: Rightward shift of dissociation curve

Increased temperature, carbon dioxide, and 2,3-BPG shift the curve to the right. This promotes oxygen release to active tissues.

Difficulty: Medium Question 19 of 20

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