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Question

Exchange of gases between alveoli and blood in pulmonary capillaries is known as 


A
External respiration
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B
Internal respiration
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C
Cellular respiration
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D
None of the above
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Solution

The correct option is A External respiration
External respiration is basically the transfer of gas between respiratory organs such as lungs and the outer environment. External respiration, also known as breathing, refers to a process of inhaling oxygen from the air into the lungs and expelling carbon dioxide from the lungs to the air. In external respiration, gas exchange takes place between the alveoli and the blood. 
Thus, the correct answer is option A.

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Biology

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