gas exchange in fish Flashcards by sophia merritt | Brainscape

Q

location of exchange

A

lamallae on gills

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Q

large surface area

A

many gill fillaments with lots of lamallae

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Q

short diffusion pathway

A

lamallae walls very thin

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Q

maintenence of concentration gradient

A

ventillation- fresh supply of water (oxygen) forced across gill fillaments
counter current flow- water + blood flow in opposite directions maintaining a conc grad across entire lamallae

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