Exercise Physiology Quiz
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Questions and Answers

What happens to the oxygen-hemoglobin dissociation curve during exercise?

  • It shifts downward due to increased oxygen levels.
  • It shifts to the right because of increased CO2 pressure. (correct)
  • It remains unchanged regardless of CO2 levels.
  • It shifts to the left due to decreased acidity.

    • What heart rate (HR) is observed at rest according to the provided data?

  • Approximately 60 bpm.
  • Approximately 72 bpm. (correct)
  • Approximately 80 bpm.
  • Approximately 90 bpm.

    • During the recovery phase, what happens to the heart rate?

  • It immediately returns to exercise levels.
  • It gradually decreases to near-rest levels. (correct)
  • It fluctuates rapidly between high and low.
  • It remains elevated throughout the recovery.

    • What is indicated by the relatively flat line in the heart rate graph during exercise?

    <p>Heart rate shows minimal increase before decreasing.</p> Signup and view all the answers

    What effect does increased acidity have on the Bohr effect?

    <p>It promotes the release of oxygen from hemoglobin.</p> Signup and view all the answers

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