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Breathing and Exchange of Gases — BIOLOGY STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceBIOLOGYBreathing and Exchange of Gases1 Mark
MCQ
When $CO_2$ concentration in blood increases, breathing becomes:
  • A
    Slow and deep.
  • ✓
    Faster and deeper.
  • C
    There is no effect on breathing.
  • D
    Shallower and slow.
✓

Answer

Correct option: B.
Faster and deeper.

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