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Question 9277
NEET Biology · Medium

Breathing and Exchange of Gases: Tissue exchange MCQ

Solve this quality-checked NEET multiple-choice question, then review the correct answer and explanation.

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Tissue exchangeMediumQuestion 9277

Question

Oxygen unloading in tissues is facilitated when:

  1. A
    PCO2 is high and pH is lower
    Correct
  2. B
    PO2 is highest and pH is highest
  3. C
    There is no haemoglobin
  4. D
    Blood stops circulating

Correct answer

PCO2 is high and pH is lower

Explanation

Metabolically active tissues promote oxygen dissociation from haemoglobin.

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