Science Class 5 Human Body and Health

Asked by AKSHAY GURU VARADHARAJAN · SRI CHAITANYA TECHNO SCHOOL, JAYANTI NAGAR.

The respiratory system ends in microscopic, balloon-shaped structures called alveoli. If the alveoli were damaged, what would be the immediate effect on the respiratory system?

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A The body would have difficulty getting enough oxygen and removing carbon dioxide.
B The lungs would fill with water, making it impossible to breathe.
C The airways would become blocked, preventing air from entering the lungs.
D The lungs would expand too much, causing chest pain and discomfort.

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Answer: A. The body would have difficulty getting enough oxygen and removing carbon dioxide.

Alveoli are surrounded by capillaries. Their thin walls allow oxygen to diffuse into the blood and carbon dioxide to diffuse out. Damage to these structures directly impairs this exchange, leading to low oxygen levels.

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The respiratory system ends in microscopic, balloon-shaped structures called alveoli. If the alveoli were damaged, what would be the immediate effect on the respiratory system?

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