The figure shown above shows a simple diagram of gas exchange occurring in the between the alveolus of the lung and the blood. If gas A goes “out” and gas B goes “ in” with respect to the blood as shown in the diagram, identify gases A and B.

A – oxygen, B- carbon dioxide

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A – water, B- carbon dioxide

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A – carbon dioxide, B- nitrogen

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A –carbon dioxide, B- oxygen

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Solution

The correct option is D
A –carbon dioxide, B- oxygen

We breathe in oxygen and expel carbon dioxide through the alveoli in our lungs. Thus oxygen enters in the blood (B) and carbon dioxide goes out of the blood (A).

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The figure shown above shows a simple diagram of gas exchange occurring in the between the alveolus of the lung and the blood. If gas A goes “out” and gas B goes “ in” with respect to the blood as shown in the diagram, identify gases A and B.

The correct option is D A –carbon dioxide, B- oxygen We breathe in oxygen and expel carbon dioxide through the alveoli in our lungs. Thus oxygen enters in the blood (B) and carbon dioxide goes out of the blood (A).

The correct option is D
A –carbon dioxide, B- oxygen

We breathe in oxygen and expel carbon dioxide through the alveoli in our lungs. Thus oxygen enters in the blood (B) and carbon dioxide goes out of the blood (A).