How are oxygen and carbon-dioxide exchanged i | vedclass

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(D) $1$. During the process of inhalation, the alveoli of the lungs get filled with air containing oxygen.$2$. The alveoli are surrounded by a network

Vedclass · Accepted Answer

By diffusion across the thin walls of the alveoli and blood capillaries.

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(D) $1$. During the process of inhalation, the alveoli of the lungs get filled with air containing oxygen.$2$. The alveoli are surrounded by a network of blood capillaries. Oxygen diffuses from the alveoli walls into the blood due to a partial pressure gradient.$3$. Blood carries this oxygen to all parts of the body, where it diffuses into the cells to release energy from digested food.$4$. Carbon-dioxide, produced as a waste product in the cells, diffuses into the blood.$5$. The blood transports this carbon-dioxide back to the lungs, where it diffuses from the blood into the alveoli to be exhaled.

How are oxygen and carbon-dioxide exchanged in our body during respiration?

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