AIIMS2001Zoology-Respiratory System

AIIMS 2001 Zoology Regulation of Breathing MCQ Question

Type: MCQ-conceptual-Medium-Class 11

The respiratory centre in the brain is stimulated by:

A

CO₂ concentration in venous blood

B

O₂ concentration in artery blood

C

CO₂ concentration in artery blood

D

O₂ concentration in venous blood

Correct Answer

Option B

Detailed Explanation

The respiratory center is sensitive to changes in CO₂ levels in the blood. An increase in CO₂ concentration stimulates the respiratory center to increase breathing rate.

Found an issue with this question?

Related Questions