AS Level Biology AQA Watch

Maariyah826
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#1
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I need some help with fructose. I need to know about how fructose is absorbed via facilitated diffusion.
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TSR Jessica
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Sorry you've not had any responses about this. Are you sure you've posted in the right place? Here's a link to our subject forum which should help get you more responses if you post there.


Just quoting in Fox Corner so she can move the thread if needed :wizard:
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TheConfusedMedic
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swear we don't need to know that?

(if this is for the Biological Molecules topic?)
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MolesterStallone
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idk whether fructose is a large or a charged molecule (only these types of molecules need facilitated diffusion), but i'm guessing it's large.
1)the molecule attaches to a carrier protein in the membrane
2)the protein changes shape
3)this releases the molecule on the opposite side of the the membrane (the inside)

Remember this is down its concentration gradient, and requires no energy.
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