Biology - Breathing and Exchange of Gases Question with Solution | TestHub
BiologyBreathing and Exchange of GasesHuman Respiratory SystemMedium2 minPYQ_2026
BiologyMediumsingle choice
Which one of the following respiratory disorders is NOT caused by bacteria or viruses?
Options:
Answer:
A
Solution:
Chronic bronchitis is a long-term inflammation of the bronchi, primarily caused by prolonged exposure to respiratory irritants such as cigarette smoke, air pollution, or occupational dust and chemicals. It is a major component of chronic obstructive pulmonary disease (COPD) and is not caused by bacterial or viral infections.
In contrast, acute bronchitis, laryngitis, and sinusitis are frequently caused by viral or bacterial infections.
Answer: Chronic bronchitis
Stream:MHT_CET_MEDICALSubject:BiologyTopic:Breathing and Exchange of GasesSubtopic:Human Respiratory System
⏱ 2mℹ️ Source: PYQ_2026
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