STANDARDZoology-Respiratory System
STANDARD Zoology Mucociliary Clearance Assertion Reason Question
Type: Assertion Reason-conceptual-Medium
Assertion :- Mucous always moves upward in trachea and bronchioles. Reason :- Trachea and bronchioles are lined by ciliated epithelium.
A
Assertion & reason both correct and reason correctly depict the assertion.
B
Assertion & reason both correct but independent statement.
C
Assertion is true but reason is false.
D
Both assertion & reason are incorrect.
Correct Answer
Option A
Detailed Explanation
The ciliated epithelium in the trachea and bronchioles helps move mucus upward, clearing debris and pathogens from the respiratory tract.
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