How does the size of molcules of the solute affect diffusion across a cell membrane?
2006-10-18 09:15:28 · 5 answers · asked by Anonymous in Education & Reference ➔ Homework Help
the cell membrane is selectively permeable, meaning it only allows specific molecules of a specific size enter... so if the molecule is too big, it can't diffuse across a cell membrane.. - does that help?
2006-10-18 09:17:31 · answer #1 · answered by Anonymous · 1⤊ 0⤋
Well the thickness of the membrane should actually determine the diffuse makes it a low pressure and less fluid makes it easier. It may have to do with the pressure and force the larger the molecule the more force it takes against the pressure. Don't you have a biology book I'm sure it is listed in there.
2006-10-18 16:22:55 · answer #2 · answered by hopeluv 2 · 0⤊ 0⤋
The cell membrane is semi permeable. Therefore, it allows certain molecules of certain types and sizes ti enter. So the membrane allow small particle and not the big ones.
2006-10-18 16:24:47 · answer #3 · answered by zainabbas86 2 · 0⤊ 0⤋
The bigger the molecule, the less likely it will be able to diffuse across a semi permiable membrane.
2006-10-18 16:18:32 · answer #4 · answered by lauren 1 · 0⤊ 0⤋
Well, there are pores in the membrane that are only so big. If a molecule is too big, then it's not getting in.
2006-10-18 16:17:41 · answer #5 · answered by Shaun 4 · 0⤊ 0⤋