NEET Biology · Medium

Breathing and Exchange of Gases: Regulation MCQ

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

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RegulationMediumQuestion 9294

Question

An increase in blood hydrogen ion concentration generally causes breathing to:

  1. A
    Increase
    Correct
  2. B
    Stop completely
  3. C
    Become unrelated to medulla
  4. D
    Convert to passive diffusion

Correct answer

Increase

Explanation

Raised H+ stimulates respiratory centres indirectly, often through increased CO2.