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STD 11 - 14. Breathing and exchange in gases — BIOLOGY STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceBIOLOGYSTD 11 - 14. Breathing and exchange in gases1 Mark
MCQ
Name the chronic respiratory disorder caused mainly by cigarette smoking.
  • A
    Respiratory acidosis
  • B
    Respiratory alkalosis
  • ✓
    Emphysema
  • D
    Asthma
✓

Answer

Correct option: C.
Emphysema
c
(c) : Emphysema is a chronic obstructive pulmonary disease $(COPD)$ caused due to cigarette smoking. It is an inflation or abnormal distention of the bronchioles or alveolar sacs of the lungs which causes irreversible distension and loss of elasticity of alveoli of the lungs.

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