Discussion of all aspects of cellular structure, physiology and communication.
Glucose is transported inside the cell by a Na+ assisted simport system. So, yes the glucose might modify the electron gradient by inserting pozitive Na+ ions, but only if the cell "wants" to do so(remember simport is a form of active transport). So i don't know if you can say glucose influences the permeability...
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Wait wait wait wait...
I apologise i think i am a total idiot. Glucose is transported inside the cell through a Na-dependend simporter(yes, you are right with the definition of simport) but it is a secondary active transport mechanism, so it only uses ATP as a Na gradient(in animal cell) or H+ gradient(in plant cell). If you already have the gradient(that does take ATP to create) glucose will enter the cell passively through a permease, taking Na+ or H+ with it. So you can say it influences.
Take note that there is also a uniport way of transporting glucose passively, however this does not influence the permeability
I thought Glucose was transported through the cell membrane. It's then changed into pyruvate and used in mitchondria for cellular respiration.
I did an experiment in university measuring pigment leakage from beetroot and thus checking the effects on the membrane. This was using different temperatures and also concentrations of methanol and acetone.
What you are saying is a completly different thing, Mjhavok
yes, that is what i am saying. But remember there is a pump that actively excrets Na+(at animal cell) or H+(at plant cell), so the balance will be quickly reestablished
so in a nutshell, glucose doesn't have any effect in itself. it's presence indirectly enacts other processes, ie the proteins responsible for ion transport. it doesn't affect the cell membrane itself. or does it? these are only conclusions i've come to from these posts. i'm not sure if i'm right. does glucose as a sugar have any chemical effect on the hydrocarbons or the lipids within the membrane?
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