Your Lab Group Is Experimenting With The Diffusion Of Molecules Across A Membrane. Dialysis Tubing Is Used As A Model Cell Membrane Because Is It Semi-Permeable, Allowing Small Molecules To Cross The Membrane, But Not Larger Molecules, Like Starch. A Starch Solution Is Placed In The Dialysis Tubing And Then The Dialysis Tubing Is Placed In An Iodine And Water Solution. Iodine Is Used As An Indicator For The Presence Of Starch. Normally, Iodine Is A Yellow-Brown Color (On The Left), But In The Presence Of Starch, It Turns A Deep Purple (Right). After Observing The Experimental Setup For 20 Minutes, The Iodine Solution Remains Brown, But The Starch Solution Inside The Dialysis Tubing Is Purple And Swollen. What Cannot Be Concluded From The Results?

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Your Lab Group Is Experimenting With The Diffusion Of Molecules Across A Membrane. Dialysis Tubing Is Used As A Model Cell Membrane Because Is It Semi-Permeable, Allowing Small Molecules To Cross The Membrane, But Not Larger Molecules, Like Starch. A Starch Solution Is Placed In The Dialysis Tubing And Then The Dialysis Tubing Is Placed In An Iodine And Water Solution. Iodine Is Used As An Indicator For The Presence Of Starch. Normally, Iodine Is A Yellow-Brown Color (On The Left), But In The Presence Of Starch, It Turns A Deep Purple (Right). After Observing The Experimental Setup For 20 Minutes, The Iodine Solution Remains Brown, But The Starch Solution Inside The Dialysis Tubing Is Purple And Swollen. What Cannot Be Concluded From The Results?. The dialysis bag solution also changed to brown color, while tap. What is the effect of molecule size on a molecule's ability to diffuse across a semipermeable membrane?

Transport Across Membrane Experiment
Transport Across Membrane Experiment from carsengokepittman.blogspot.com

If molecules are small enough, then they will diffuse across a semipermeable. Iodine is used as an indicator for the presence of starch. Your lab group is experimenting with the diffusion of molecules across a membrane.

Iodine Is Used As An Indicator For The Presence Of Starch.


The dialysis bag solution also changed to brown color, while tap. Iodine is used as an indicator for the presence of starch. The beaker solution turned light brown after benedict’s solution was added to it and suspended in a water bath for 10 minutes.

What Is The Effect Of Molecule Size On A Molecule's Ability To Diffuse Across A Semipermeable Membrane?


Your lab group is experimenting with the diffusion of molecules across a membrane. If molecules are small enough, then they will diffuse across a semipermeable.

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