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Q: Select the correct statement about oxygen transport in blood

  • 1
    A 50% oxygen saturation level of blood returning to the lungs might indicate an activity level higher than normal
  • 2
    During normal activity, a molecule of hemoglobin returning to the lungs carries one molecule of O2
  • 3
    During conditions of acidosis, hemoglobin is able to carry oxygen more efficiently
  • 4
    Increased BPG levels in the red blood cells enhance oxygen-carrying capacity
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Answer : 2. "During normal activity, a molecule of hemoglobin returning to the lungs carries one molecule of O2"
Explanation :

Answer: B) During normal activity, a molecule of hemoglobin returning to the lungs carries one molecule of O2 Explanation:

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