An increase in __(A)__ in the blood causes an increase in __(B)__, leading to an __(C)__ in breathing rate. (A)(B)(C)1.CO2H+decrease2.CO2pHincrease3.CO2H+increase4.O2H+increase

An increase in CO2 in the blood causes an increase in H+, leading to an increase in breathing rate. Chemoreceptors detect elevated H+ and CO2 levels and activate respiratory rhythm centre. Rapid and deep breathing (hyperventilation) occurs to exhale more CO2 until H+ are lowered to normal level.

An increase in __(A)__ in the blood causes an increase in __(B)__, leading to an __(C)__ in breathing rate. (A)(B)(C)1.CO2H+decrease2.CO2pHincrease3.CO2H+increase4.O2H+increase

An increase in CO2 in the blood causes an increase in H+, leading to an increase in breathing rate. Chemoreceptors detect elevated H+ and CO2 levels and activate respiratory rhythm centre. Rapid and deep breathing (hyperventilation) occurs to exhale more CO2 until H+ are lowered to normal level.

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An increase in (A) in the blood causes an increase in (B), leading to an (C) in breathing rate.
(A) (B) (C)
1. CO₂ H⁺ decrease
2. CO₂ pH increase
3. CO₂ H⁺ increase
4. O₂ H⁺ increase

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Detailed Solution

An increase in CO₂ in the blood causes an increase in H⁺, leading to an increase in breathing rate. Chemoreceptors detect elevated H⁺and CO₂ levels and activate respiratory rhythm centre. Rapid and deep breathing (hyperventilation) occurs to exhale more CO₂ until H⁺are lowered to normal level.

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