5 Questions
What is the function of ciliated epithelium in the respiratory passage?
It helps in motion, driving any fluid that is on them
Where does the breakdown of pyruvic acid occur in the presence of oxygen?
Mitochondria
What is the main contribution of diaphragm to the respiratory process?
Enlargement of the chest cavity lengthwise
What is the primary function of intercostal muscles during respiration?
Helping the inward and outward movement of ribs, enlarging the chest cavity all around
What is the purpose of pleural fluid in the respiratory system?
It provides lubrication for free movement of the expanding and contracting lungs
Test your understanding of Chapter 14: The Respiratory System with these concise solutions for Class 9 Biology ICSE. The quiz covers exercises A.1(a) to A.1(j) and B.1 to B.6.
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