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What three important physical features does the gas exchange membrane in the lungs need to have to be efficient?
Wiki User
∙ 12y ago
O2 and CO2 are carried by the blood.
Gases moves by diffusion that is, they move from an area of higher concentration to an area of lower concentration.
The lining of the alveoli most be moist to help gases diffuse.
Wiki User
∙ 12y ago
INeedAnswersToo
Wiki User
∙ 12y ago1. Thin and permeable exterior:To let gases through
2: Moist: To alow gases to be in solution
3. Large surface area: for efficient and fast exchange
Wiki User
∙ 11y agothey have a big volume so they can fit more air and do the job quickly,
they can be stretched so they can fit more air each time
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