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Thank you here's Your shmoop du jour brought to you

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by diffusion it's like successful intermingling at school which of

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these molecules is not able to freely diffuse across the

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plasma membrane And here the potential answer their water annapolis

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Well the diffusion of water across the plasma membrane is

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so important to sell that it was given a special

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name it's called osmosis and it is super important to

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sustaining life it's an a lister And speaking of a

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that's the wrong answer He is also incorrect carbon ax

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that has the ability to freely diffuse out of your

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red blood cells down there concentration radiant and into your

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lungs And it can do that quick as a bunny

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Something isn't right As for answers see hydrophobic molecules who

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by the way aren't cool with water molecules marrying oil

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molecules So yeah they're non polar and they can freely

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pass across the plasma membrane Hydrophobic molecules include al kane's

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oils fats and greasy substances Sounds like a typical order

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It uh our favorite drive through well see is definitely

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incorrect That leaves b is the correct answer A sodium

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Mayan is a charged molecule and has no business roaming

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Freely across the plasma membrane any plus requires active transport

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because of its charge Incidentally we also require active transport 00:01:25.929 --> [endTime] especially after we've eaten human e nachos

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