Exchange and Transport in animals Flashcards by hivi faris

Q

why do multicellular organisms need exchange surfaces and transport systems?

A

they have small SA:VOL

- they carry out lots of metabolic processes

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Q

name 4 adaptations of alveoli

A

Large SA:Vol
one cell thick
good supply of blood
layer of moisture

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Q

ficks law?

A

rate of diffusion = (sa x conc)/ membrane thickness

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