Question

which of the following substances in tobbaco smoke damage the gas exchange system​

Answer 1

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Over time, the toxins from inhaled cigarette smoke break the thin walls of alveoli, leaving larger, less efficient air sacs. The sacs also begin to lose their bounce, making it harder to bring in the oxygen and expel carbon dioxide. 3 Both can become partially trapped in the lungs.

Answer 2

Answer:

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Explanation:

Exercise and smoking both affect the lungs and circulatory system. ... Nicotine is the addictive substance in tobacco. ... However, cigarette smoke contains harmful chemicals that damage these cells, leading to a build-up of ... This reduces the efficiency of gas exchange, so people with the lung disease emphysema.