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STD 11 - 14. Breathing and exchange in gases — NEET STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceNEETSTD 11 - 14. Breathing and exchange in gases4 Marks
MCQ
Respiratory centre of brain is sensitive to
  • A
    More $O_2$ conc. in blood
  • ✓
    More $CO_2$ conc. in blood
  • C
    Accumulation of blood in brain
  • D
    All of these
✓

Answer

Correct option: B.
More $CO_2$ conc. in blood
b
(b) A chemosensitive area located close to the respiratory centre in medulla is highly sensitive changes in ${P_{C{O_2}}}$ or $pH$ of the blood.

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