For gas exchange to be efficient, the respiratory membrane must be ________.

1 answer:

5 0

<span>The answer is b.0.5 to 1 micrometre thick.</span>
Typically, the thickness of the respiratory membrane measures around 0.6 micrometres. This membrane comprises alveolar epithelial cells, capillary endothelial cells, and basement membranes created by both alveolar and capillary cells.

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