MCQ
Which substances when present in high level can activate the chemosensitive area present adjacent to rhythm centre?
- A$CO_2$ and $O_2$
- B$HCO _{3}^{-}$ions and $O _{2}$
- ✓$CO _{2}$ and $H ^{+}$ions
- D$H ^{+}$and $HCO _{3}^{-}$ions
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| Column-$I$ | Column-$II$ |
| (Chromosome) | (Position of Centromere) |
| $A$. Metacentric | $I$. At the tip |
| $B$. Submetacentric | $II$. Almost near the tip |
| $C$. Acrocentric | $III$. At the middle |
| $D$. Telocentric | $IV$. Slightly away from the middle |